A single-factor ANOVA study consists ofr=6treatments with sample sizesni≡10. a. Assuming that pairwise comparisons of the treatment means are to be made with a 90 percent family confidence coefficient, find theT,S, andBmultiples for the following numbers of pairwise comparisons in the family:g=2,5,15. What generalization is suggested by your results? b. Assuming that contrasts of the treatment means are to be estimated with a 90 percent family confidence coefficient, find theSandBmultiples for the following numbers of contrasts in the family:g=2,5,15. What generalization is suggested by your results?

Answers

Answer 1

The generalization suggested by these results is that as the number of contrasts increases, the multiples decrease.

a. For each of the g numbers of pairwise comparisons in the family (2, 5, and 15), the T, S, and B multiples can be calculated using the following formulas:

[tex]T = t α/2 (g-1)S = t α/2 (g-1) √2/(n-1)B = t α/2 (g-1) √(2/n)[/tex]

Where tα/2 is the t-value associated with the given family confidence coefficient (in this case, 90%) and g is the number of pairwise comparisons.

For g=2, the T, S, and B multiples are 3.078, 2.179, and 2.500 respectively. For g=5, the multiples are 2.571, 1.711, and 2.001 respectively. For g=15, the multiples are 2.228, 1.429, and 1.641 respectively.

The generalization suggested by these results is that as the number of pairwise comparisons increases, the multiples decrease.

b. For each of the g numbers of contrasts in the family (2, 5, and 15), the S and B multiples can be calculated using the following formulas:

[tex]S = t α/2 (g-1) √2/nB = t α/2 (g-1) √(2/n)[/tex]

Where tα/2 is the t-value associated with the given family confidence coefficient (in this case, 90%) and g is the number of contrasts.

For g=2, the S and B multiples are 2.179 and 2.500 respectively. For g=5, the multiples are 1.711 and 2.001 respectively. For g=15, the multiples are 1.429 and 1.641 respectively.

The generalization suggested by these results is that as the number of pairwise comparisons or contrasts increases, the multiples decrease.

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Related Questions

Find a format option that would result in the following output format:
>> 5/16 + 2/7ans = 67/112

Answers

The format option that would result in the following output format:

>> 5/16 + 2/7ans = 67/112 is format compact; format rational; format shortG;

To achieve the desired output format of ">> 5/16 + 2/7ans = 67/112", you can use the following format option in MATLAB:

>> format compact; format rational; format shortG;

This sets the format to:

compact, to suppress excess blank lines in output

rational, to display fractions instead of decimal approximations

shortG, to display numbers in short format

With this format option, MATLAB will display the result of the computation as a fraction, and the output will be compact and free of excessive whitespace.

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Masks are $5.18 for a box of 50, how much does each mask cost?

Answers

Answer: .1036

Step-by-step explanation:

Discuss the costs and benefits of overdraft protection and lines of credit.

When you sign up for overdraft protection, checks, and other bank features, debit transactions clear even if there is not enough money in the account. The bank may charge large fees for overdraft protection. Instead of paying a fee, some people choose to have a line of credit tied to their checking account.

Kevin is opening a new checking account and is trying to decide if he should sign up for overdraft protection, a line of credit, or neither. Research both options and then discuss the advantages and disadvantages of each option.

Answers

Overdraft protection and lines of credit are two financial tools that can be used to cover unexpected expenses or short-term financing needs.  Some of their costs and benefits are shown below.

What are overdraft protection and lines of credit ?

Overdraft protection is a service offered by banks to protect their customers from overdraft fees. If a customer tries to withdraw more money than is available in their account, the bank will cover the transaction and charge a fee.

The cost of overdraft protection is usually a fee charged by the bank for each overdraft transaction, which can add up over time. The benefit of overdraft protection is that it can help customers avoid overdraft fees and the embarrassment of declined transactions.

Lines of credit are a type of loan that allows borrowers to access funds up to a certain limit. They are typically unsecured, meaning that they do not require collateral, and are often used for short-term financing needs such as home improvements, car repairs, or unexpected expenses.

The cost of a line of credit is usually an interest rate on the amount borrowed. The benefit of a line of credit is that it provides access to funds when they are needed, without having to apply for a loan each time.

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Jason spent $15.75 on art supplies.
This is $3.90 more than Andreas spent on art supplies.
Which equations represent this situation, including the amount that Andreas spent on art supplies?

1. a +3.90 15.75
a=19.65


2. 3.90 + a 15.75
a = 11.85

3. 3.90 + a = 15.75
a = 11.85

4. a 3.90 15.75
a = 19.65

Answers

Answer:

11.85  (3)

Step-by-step explanation:

The correct equation that represents this situation is:

3.90 + a = 15.75

where "a" represents the amount that Andreas spent on art supplies.

To solve for "a", we can subtract 3.90 from both sides:

a = 15.75 - 3.90

a = 11.85

Therefore, Andreas spent $11.85 on art supplies.

the answer is 3

if jason spent 15.75, and we subtract 3.90 we get 11.85, so now working backwards if we add 3.90 and 11.85, we will get 15.75

boy can row a boat at a constant rate of 5 mi/hr in still water, as indicated in the figure. He rows upstream for 15 minutes and then rows downstream, returning to his starting point in another 10 minutes.
(a) Find the rate of the current. mi/hr
(b) Find the total distance traveled. mi

Answers

The rate of the current is 10 mi/hr and the total distance traveled is 100 mi.

Let S be the speed of the current, R be the speed of the boat in still water, t1 be the time taken to row upstream and t2 be the time taken to row downstream. The total distance traveled is given by the formula [tex]d = R(t1 + t2)[/tex]. In this case, [tex]d = 5(15 + 10) = 100 mi[/tex].

To calculate the rate of the current, we can use the formula[tex]d = (R + S)t1 = (R - S)t2[/tex]. In this case, 100[tex]= (5 + S)15 = (5 - S)10[/tex], which can be simplified to [tex]S = (100 - 50)/5 = 10 mi/hr[/tex].

Therefore, the rate of the current is 10 mi/hr and the total distance traveled is 100 mi.

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At 11:00 am, Meg left Point A traveling 30 mph. Two hours later, Jack left Point A
traveling 45 mph, along the same route. At what time will Jack catch up to Meg?
Show your work.

Answers

Using algebraic equations, the time Jack will catch up to Meg is 8 hours later, which is 7:00 pm.

How to Apply Algebraic Equations to Solve Problems?

Applying algebraic equations, let's start by finding out how far Meg traveled in the two hours before Jack started traveling.

Distance traveled by Meg in 2 hours = (2 hours) x (30 miles/hour) = 60 miles

Now, let's consider the time it takes for Jack to catch up to Meg. Let t be the time elapsed since Jack started traveling.

During this time, Meg will have traveled for t + 2 hours (since she started 2 hours earlier).

Distance traveled by Jack = (45 miles/hour) x t

Distance traveled by Meg = (30 miles/hour) x (t + 2) + 60 miles

Since Jack catches up to Meg at the same point in the route, their distances traveled must be equal:

(45 miles/hour) x t = (30 miles/hour) x (t + 2) + 60 miles

Simplifying this equation:

45t = 30t + 60 + 60

15t = 120

t = 8

Therefore, Jack will catch up to Meg 8 hours after Meg started traveling (remember that Meg started at 11:00 am, so 8 hours later is 7:00 pm).

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the velocity of a vehicle is given in fig. \( 1.8 \). a. determine the equation of \( v(t) \) for i. \( 0 \leq t \leq 3 \) s ii. \( 3

Answers

The linear equation for the vehicle on each given time is:

0s ≤ x ≤ 3s: y = -4x + 283s ≤ x ≤ 6s: y = 126s ≤ x ≤ 9s: y = -4x + 36t ≥ 9s: y = 0

Please refer to the attached picture for the complete question and the graph.

From the case, we know take several points based on the given time:

(0, 24)(3, 12)(6, 12)(9, 0)

We can find the linear equation for each given time by finding the slope of the line and the constant of c. Remember that the linear equation formula is:

y = mx + c

where:

m = slope of line

c = constanta

We take the first 2 points:

(0, 24)

(3, 12)

slope (m) = y₂ - y₁

                  x₂ - x₁

m = (12 - 24) / (3 - 0)

m = (-12)/3 = - 4

We take the value of m into the linear equation and test it on one of the point we have:

(0, 24)

y = mx + c

24 = (-4)(0) + c

24 = - 4 + c

c = 28

Linear equation: y = -4x + 28

Next, we will take another pair of points:

(3, 12)

(6, 12)

slope (m) = (12 - 12) / (6 - 3)

m = 0

This shows that the linear equation for this part of graph is:

y = 12 --> because no matter changes on x, the value of y remains.

We take another pair of points:

(6, 12)

(9, 0)

slope (m) = (0 - 12) / (9 - 6)

m = (-12)/3 = -4

We take the value of m into the linear equation and test it on one of the point we have:

(9, 0)

y = -4x + c

0 = -4 (9) + c

c = 36

The linear equation for this part of graph is y = -4x + 36

The other part of graph's linear equation is y = 0 because the car has come into stop.

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in terms of the function s, the limit we would have to evaluate in order to calculate the slope of the tangent line to s at t=1 is

Answers

It is not possible to give an exact answer to this question without knowing the specific function s. However, in general, the slope of the tangent line to a function s at a specific point t can be found by taking the derivative of the function s at that point.

If we let f(t) be the function s, then the derivative of f(t) at t=1 would give us the slope of the tangent line to s at that point. This can be written mathematically as:

s'(1) = lim(h->0) [s(1+h) - s(1)]/h

Here, s'(1) represents the derivative of s at t=1, and h represents a small change in t. By taking the limit as h approaches 0, we can find the instantaneous rate of change of s at t=1, which is the slope of the tangent line to s at that point.

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label the protein structure level on lines 1,2,3, and 4 and label the two structures on the lines under (2). describe the characteristics of each structural level in the corresponding boxes below the drawings.

Answers

The characteristics of each structural level in the corresponding boxes are hydrogen bonds, amino acids, and disulfide bonds

Protein structure is a key concept in biology, and it refers to the organization of amino acid sequences into three-dimensional structures. The different levels of protein structure are primary, secondary, tertiary, and quaternary.

On line 1, we have the primary structure, which refers to the linear sequence of amino acids in a protein. It is determined by the DNA sequence of the gene that encodes the protein. Each amino acid is joined to the next one by a peptide bond, forming a polypeptide chain.

On line 2, we have the secondary structure, which refers to the local folding of the polypeptide chain. The two structures depicted on the lines under line 2 are the alpha-helix and the beta-sheet. The alpha-helix is a coiled structure in which the polypeptide chain is twisted into a spiral shape, held together by hydrogen bonds. The beta-sheet is a flat structure in which the polypeptide chain is folded into a zigzag pattern, also held together by hydrogen bonds.

On line 3, we have the tertiary structure, which refers to the overall three-dimensional shape of a single polypeptide chain. It is determined by the interactions between amino acid side chains, such as hydrophobic interactions, hydrogen bonds, disulfide bonds, and van der Waals forces. The tertiary structure can be globular or fibrous, depending on the protein's function.

On line 4, we have the quaternary structure, which refers to the arrangement of multiple polypeptide chains in a protein complex. Some proteins consist of a single polypeptide chain, while others consist of two or more chains that interact with each other to form a functional unit. The quaternary structure is also determined by the same types of interactions as the tertiary structure.

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In trapezoid PQRS, the lengths marked
are in feet. What is the area of the
trapezoid in square feet?
S
5
3
P 10
F.
44
G. 50
H. 62.5
J. 88
K. 100 dion
12
Q
R

Answers

The areas of the trapezoid is 50 units².

How to find the area of a trapezoid?

The trapezoid PQRS have bases 10 and 12 units respectively. The height of the trapezoid is unknown. Let's find the area of the trapezoid as follows:

area of trapezoid = 1 / 2 (a + b)h

where

a and b are the basesh = height of the trapezoid

Therefore,

a = 10 units

b = 15 units

Using Pythagoras's theorem,

5² - 3² = h²

h = √25 - 9

h = √16

h = 4 units

area of trapezoid = 1 / 2 (10 + 15)4

area of trapezoid = 1 / 2 × 25 × 4

area of trapezoid = 100 / 2

area of trapezoid = 50 units²

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Directions: Identify the coordinates points and quadrants on the grid below.

Answers

The coordinates points and quadrants on the grid shown above are listed below.

How to identify the coordinates points and quadrants?

In Mathematics, a quadrant simply refers to the area that is occupied by the values on the x-coordinate (x-axis) and y-coordinate (y-axis) of a cartesian coordinate.

Based on the cartesian coordinate (grid) above, the coordinates points and quadrants should be identified as follows;

Coordinate A = (1, 3) in quadrant 1.Coordinate B = (-6, 2) in quadrant 2.Coordinate C = (4, -3) in quadrant 4.Coordinate D = (-5, -5) in quadrant 3.Coordinate E = (-4, 7) in quadrant 2.Coordinate F = (7, -6) in quadrant 4.Coordinate G = (0, 5) in quadrant 1.Coordinate H = (6, 4) in quadrant 1.Coordinate I = (-3, -1) in quadrant 3.Coordinate J = (-7, 0) in quadrant 2.Coordinate K = (-7, -7) in quadrant 3.Coordinate L = (-3, 4) in quadrant 2.Coordinate M = (-8, 6) in quadrant 2.Coordinate N = (5, 7) in quadrant 1.Coordinate O = (2, -6) in quadrant 4.Coordinate P = (-3, -7) in quadrant 3.Coordinate Q = (-8, -2) in quadrant 3.Coordinate R = (2, 6) in quadrant 1.Coordinate S = (-4, -4) in quadrant 3.Coordinate T = (6, -8) in quadrant 4.

In conclusion, you should take note of the points on the x-axis and y-axis of the cartesian coordinate (grid).

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add the quotient of 0.4 and 0.7 to the quotient of 1.4 and 0.4

Answers

The solution to the statement "add the quotient of 0.4 and 0.7 to the quotient of 1.4 and 0.4" is 4.07

How to determine the solution

From the question, we have the following parameters that can be used in our computation:

add the quotient of 0.4 and 0.7 to the quotient of 1.4 and 0.4

Using the above as a guide, we have the following:

0.4/0.7 + 1.4/0.4

Simplify the fractions

4/7 + 7/2

Evaluate the sum

4.07 (approximated)

Hence, the solution is 4.07

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The Melbourne Formula 1 track is 5.303 km in length.
The track record is 1 minute and 24 seconds. What is
the average speed (km/h) for the lap record? Answer
correct to two decimal places.

Answers

Step-by-step explanation:

To calculate the average speed of the lap record, we need to know the distance covered and the time taken.

Distance = 5.303 km

Time = 1 minute and 24 seconds = 84 seconds

To convert seconds to hours, we divide by 3600 (the number of seconds in an hour):

[tex] \frac{84 \: seconds \:}{3600} = 0.02333 \: hours[/tex]

Now we can calculate the average speed:

[tex]Average \: speed = \frac{d}{t} = \frac{5.303km}{0.02333} [/tex]

Average speed = 227.59 km/h

1
2
3
4
5
6
7
8
9
4
1 point
Find AC.
A
O
B
3√2
3√3
3
6
Previous
3
C

Answers

Answer:

the answer is 3√3

Step-by-step explanation:

probability the top 4 cards include 3 different ranks, with one rank apprears twice (for example, an ace of hearts, a 3 of clubs, a 3 of hearts, and a 7 of spades).

Answers

(a) The probability that the top card is an ace or a king is [tex]$\frac{2}{13}[/tex]

(b) The probability that the top card is spades and the second card is clubs is [tex]$\frac{1}{2652}[/tex]

(c) The probability that the top card is spades and the second card is an ace is [tex]$ \frac{1}{663}[/tex]

(d) The probability that the top 3 cards are all spades is [tex]$\frac{1}{132600}[/tex]

(e) The probability that the top 4 cards include 3 different ranks, with one rank appears twice is [tex]$\frac{2}{925}[/tex]

As per the data given:

A standard deck of 52 cards has 13 ranks (ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king) and 4 suits (spades, hearts, diamonds, and clubs), such that there is exactly one card for any given rank and suit.

a) The probability that the top card is an ace or a king:

The probability that the top card is an ace [tex]$\frac{4}{52} = \frac{1}{13}[/tex]

The probability that the top card is an king [tex]$\frac{4}{52}=\frac{1}{13}[/tex]

The probability that the top card is an ace or a king is [tex]$\frac{1}{13} +\frac{1}{13} =\frac{2}{13}[/tex].

b) The probability that the top card is spades is [tex]$\frac{1}{52}[/tex]

Already a card is drawn then the probability that the second card is clubs is [tex]$\frac{1}{51}[/tex]

The probability that the top card is spades and the second card is clubs is [tex]$\frac{1}{52}\times\frac{1}{51} = \frac{1}{2652}[/tex]

c) The probability that the top card is spades is [tex]$\frac{1}{52}[/tex]

Already a card s drawn then the probability that the second card is an ace is [tex]$\frac{4}{51}[/tex]

The probability that the top card is spades and the second card is an ace  is [tex]$\frac{1}{52}\times\frac{4}{51} = \frac{4}{2652} = \frac{1}{663}[/tex]

d) The probability that the top 3 cards are all spades is [tex]$\frac{1}{52}\times\frac{1}{51}\times\frac{1}{50} = \frac{1}{132600}[/tex]

e) There are C(52, 4) ways to choose 4 cards from the deck, and the 4 ways to choose the rank that appears twice.

So, the total number of ways to choose 4 cards with 3 different ranks and one rank appearing twice is 4 C(52, 4) = 4 × 270725.

The number of ways to choose the 4 cards such that they include 3 different ranks, with one rank appearing twice is 4  C(13, 2)  C(4, 2) = 672.

Hence, the probability is [tex]$\frac{672}{270725} =\frac{2}{925}[/tex]

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A standard deck of 52 cards has 13 ranks (ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king) and 4 suits (spades, hearts, diamonds, and clubs), such that there is exactly one card for any given rank and suit. The deck is randomly arranged. What is the probability that

(a) the top card is an ace or a king.

(b) the top card is spades and the second card is clubs.

(c) the top card is spades and the second card is an ace.

(d) the top 3 cards are all spades.

(e) the top 4 cards include 3 different ranks, with one rank appears twice (for example, an ace of hearts, a 3 of clubs, a 3 of hearts, and a 7 of spades).

: A child enters a carousel that takes one minute to revolve once around. The child enters at the point (0,1), that is, on the due north position. Assume the carousel revolves counterclockwise. What are the coordinates of the child after 75 seconds? Enter the exact answer as a point, (a, b).

Answers

The coordinates of the child after 75 seconds in a carousal , if child enters at the point (0,1) are (-1, 0).

According to question, the child enters at the point (0,1), that is, on the due north position.

1 revolution = 1 minute

75 seconds = 75/60 = 5/4 of a minute

which means one full turn and then 1/4 turn.

Assuming the center of rotation is the origin.

If so, then 1/4 of a full turn means we rotate from (0,1) to (-1,0)

This is if we move counterclockwise.

The angle of rotation is (1/4)*360 = 90 degrees.

corresponds to the compass positions of North which means at (-1, 0)

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N
O 0.21
0.34
0.45
O 0.55
5
Mark this and return
6
7
8
For students majoring in Hospitality Management, it was determined that 5% have visited 1-10 states, 16% have
visited 11-20 states, 45% have visited 21-30 states, 19% have visited 31-40 states, and 15% have visited 41-50
states. Suppose a Hospitality Management student is picked at random. What is the probability that the student has
not visited between 21 and 30 states?
10
Save and Exit
ext
Submit

Answers

The solution is, 66% that a randomly chosen student has visited 30 or fewer states.

What is probability?

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

here, we have,

The categories are mutually exclusive, so we have ...

 P(≤30) = P(1–10) +P(10–20) +P(20–30)

            = 5% +16% +45%

 P(≤30) = 66%

The probability is 66% that a randomly chosen student has visited 30 or fewer states.

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The equation shown is used to find the force of gravity, F, between tow objects

Answers

The equation shown is used to find the force of gravity, F = G(m₁m₂)/R², between two objects.

What is gravitational force?

All physical things with mass are drawn to the gravitational force, which can be thought of as an attractive force. The strongest known natural force is actually this one.

The attracting force F has a magnitude equal to G. (the gravitational constant, a number the size of which depends on the system of units used and which is a universal constant) multiplied by the product of the masses (m₁ and m₂) and divided by the square of the distance R:

F = G(m₁m₂)/R².

Newton’s Law would imply an infinite gravitational force when two very small objects touch, that is, when their centers of mass are so close that "r" is effectively zero.

In reality, this would only take place at the subatomic scale, but at the time of Newton, they were unaware of subatomic particles, the Quantum Theory, or Einstein's reinterpretation of gravity, which would have allowed them to rule out infinite or extremely strong gravitational forces. The least powerful force is gravity.

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find the sample variance. the increases (in cents) in cigarette taxes for 17 states in a 6-month period are: 60, 20, 40, 40, 45, 12, 34, 51, 30, 70, 42, 31, 69, 32, 8, 18, 50 Use the range rule of thumb to estimate the standard deviation. Compare the estimate to actual standard deviation.

Answers

17.6866 is  the range rule of thumb to estimate the standard deviation.

How to interpret a standard deviation?

The term "standard deviation" (or "") refers to the degree of dispersion of the data from the mean.

                        Data are said to be more closely grouped around the mean when the standard deviation is low and more dispersed when the standard deviation is high.

The rule of thumb for estimating standard deviation is given by

   σ = Range/4

The range is difference between maximum and minimum values

     σ ≈ 70 - 8/4

        ≈ 15.5

Use Microsoft excel or any other software to calculate the exact standard deviation

            σ = √1/n∑ⁿi (xi - x)²

                 = 17.6866

Our approximated standard deviation is almost equal to actual standard deviation.

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Li Marie's water tables are evenly spaced along the 5,000-meter (or 5-kilometer) course, including one at the beginning and one at the end. What is the distance between each pair of tables that are next to each other? Hint: There are not 9 sections between tables.

Answers

The distance between each of the 9 tables is given as follows:

625 meters.

How to obtain the distance?

The distance is obtained applying the proportions in the context of the problem.

A proportion is applied as the distance is calculated by the division of the total distance by the number of spaces, which is one less than the number of tables.

The parameters for this problem are given as follows:

Total distance of 5000 meters.Eight spaces.

Hence the distance between each of the 9 tables is obtained as follows:

5000/8 = 625 meters.

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seven high school teachers want to schedule exams for their classes next week in such a way that no student has to take more than one exam each day. the teachers have consulted with each other, and found that their students overlap as follows:

Answers

The problem of scheduling exams for the high school students can be solved by using graph theory. We can represent the overlap of students in the form of a graph where each teacher is a node and the edges represent the students who belong to both the teachers classes.

To ensure that no student has to take more than one exam each day, we need to find a coloring of the graph such that no two adjacent nodes have the same color. This is equivalent to scheduling exams such that no two exams on the same day have any common students.

Using a greedy approach, we may overcome this issue by starting with any node and assigning it a color.. We then recursively color the neighbors of the node with a different color and so on. This algorithm will always produce a valid coloring since we are guaranteed to find a valid color for every node, given that we have not run out of colors.

In this case, we have seven teachers so we need at least seven colors. However we can find a valid coloring with fewer colors, depending on the structure of the graph. This problem can also be extended to more general situations, where we have more than one exam per day or where we have more complex constraints on the scheduling of exams.

The answer is general as no additional data is given.

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lo . Madison hace un mantel individual. Lo divide en 6 partes iguales para colorearlo. ¿Cómo se llaman las partes?​

Answers

The scale factor of for the given scaled reproduction of figure {P} to figure {Q} is 7/10.

What is scale factor?

Scale factor is a constant value that is used to dilate (enlarge or reduce) the image size. Mathematically, for the scale factor -

{K} > 1 : Enlargement

{K} < 1 : Shrinking

{K} = 1 : Preserved

Given is figure {Q} is a scaled reproduction of figure {P}.

We can write the ratio of their corresponding sides as constant. So, we can write, the scale factor as -

K = 14/20

K = 7/10

Therefore, the scale factor of for the given figure {P} to figure {Q} is 7/10.

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{QUESTION IN ENGLISH -

Figure Q is a scaled reproduction of Figure P. What is the number by which the measurement of Figure Q must be multiplied to obtain Figure P?

Figure P

20cm

Figure Q

14cm

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Part 1
The brain volumes ​(cm3​) of 50 brains vary from a low of 904 cm3 to a high of 1488 cm3. Use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 156.9 cm3​, assuming the estimate is accurate if it is within 15 cm3.
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Part 1
The estimated standard deviation is enter your response here cm3.
​(Type an integer or a decimal. Do not​ round.)

Answers

Answer:

The range rule of thumb states that the estimated standard deviation s is approximately equal to the range divided by 4.

Range = 1488 - 904 = 584 cm3

Therefore, the estimated standard deviation s is approximately:

s = Range / 4 = 584 / 4 = 146 cm3

The given exact standard deviation is 156.9 cm3.

Since the estimate is within 15 cm3 of the exact standard deviation, we can say that the estimate is accurate.

The radius of a circle of area A and circumference C is doubled. Find the new area in terms of A. Find the new circumference of the circle in terms of C.

Answers

The new area is 4A and the new circumference is 2C.

To find the new area of the circle, we need to use the formula for the area of a circle: A = πr^2, where r is the radius of the circle. If we double the radius, we get a new radius of 2r. So, the new area can be found as:

New Area = π(2r)^2 = π(4r^2) = 4πr^2

Thus, the new area is four times the original area.

To find the new circumference of the circle, we use the formula for the circumference of a circle: C = 2πr. Doubling the radius, we get a new radius of 2r. So, the new circumference can be found as:

New Circumference = 2π(2r) = 4πr

Thus, the new circumference is four times the original circumference.

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If ​P(A)​=.7, ​P(B)=.3​, and A and B are​ independent, find​ P(A and​ B)

Answers

Step-by-step explanation:

AND is represented by multiplication.

OR is represented by addition.

so, for independent A and B,

P(A and B) = P(A) × P(B) = 0.7 × 0.3 = 0.21

If two events, A and B, are independent ,then

P([tex]\frac{A}{B}[/tex]) = P(A)

⇒ P(A∩B) / P(B) = P(A)

P(A∩B) = P(A) × P(B)

According to question ,

​P(A)​=0.7

P(B)=0.3​

Since A and B are independent events,

P(A∩B) = P(A) × P(B)

            = 0.7 × 0.3

            =0.21

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Which choice shows 25.367 written in expanded form?
(2 × 1) + (5 × 1) + (3 × 0.1) + (6 × 0.001) + (7 × 0.001)

(2 × 10) + (5 × 1) + (3 × 0.1) + (6 × 0.001) + (7 × 0.001)

(2 × 10) + (5 × 1) + (3 × 0.1) + (6 × 0.01) + (7 × 0.001)

(2 × 10) + (5 × 1) + (6 × 0.01) + (3 × 0.001) + (7 × 0.001)

Answers

Answer:

the third one

Step-by-step explanation:

(2 × 10) + (5 × 1) + (3 × 0.1) + (6 × 0.01) + (7 × 0.001)

20+5+0.3+0.06+0.007=25.367

Answer:

the third number will be correct answer

please help me im doing pre alg and i cant figure out wether i shade up or to the side; graph x > 1

Answers

The representations of the inequality is  an open circle is at 1 and a bold line starts at 1 and is pointing to the right.

How to graph an inequality?

An inequality compares two values, showing if one is less than, greater than, or simply not equal to another value e.g. 5 < 6, x ≥ 2, etc.

Since our answer is x > 1.  An open circle will be at 1 and a bold line starts at 1 and is pointing to the right (>). Check the attached image.

Note: You only shade up if you have ≤ (less than or equal) or ≥ (greater than or equal).

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Let x be a random variable that possesses a binomial distribution with p=0.6 and n=5. Using the
binomial formula or tables, calculate the following probabilities. Also calculate the mean and standard
deviation of the distribution. Round solutions to four decimal places, if necessary.

Answers

Answer:

Let X ~ B(0.6, 5)

Prob of success = 0.6 Prob of failure = 0.4

Amount of samples = 5

P(X [tex]\geq[/tex] 3) = P(3) + P(4) + P(5)

              = (5C3 x (0.6)^3 x (0.4)^2) + (5C4 x (0.6)^4 x (0.4)) + (0.6)^5

              = 0.6826 (cor to 4 dp)

P(X [tex]\leq[/tex] 4) = P(0) + P(1) + P(2) + P(3) + P(4)

              = 1 - P(5)

              = 1 - (0.6)^5

              = 0.9222 (cor to 4 dp)

P(X = 2) = P(2) = (5C2 x (0.6)^2 x (0.4)^3) = 0.2304

Mean = n x p = 5 x 0.6 = 3

Standard deviation = n x p x ( 1 - p) = 5 x 0.6 x (1 - 0.6) = 5 x 0.6 x 0.4 = 1.2

         

you are given the following probability distribution for a stock probability outcome 5 6 5 18 1 a compute the expected return 0.5 0.06 0.5 0.18 6 2 b compute the standard deviation 3 c compute the coefficient of variation

Answers

If probability distribution for a stock probability outcome is 5, 6 ,5 ,18, 1.

a) The expected return is 1.56

b) The standard deviation is 5.1715  

c) The coefficient of variation is 331.25%.

To calculate the expected return, we multiply each possible outcome by its probability and then sum the results. For example, the expected return from a 5% return is calculated as 0.5 x 5%, or 0.025. We do this for each possible outcome and then sum the results to get the expected return for the investment.

In this case, the expected return is 1.56, which means that over the long run, we can expect to earn an average return of 1.56% on this investment.

The standard deviation is a measure of how much the possible outcomes of an investment vary from the expected return. A higher standard deviation means that the possible returns are more spread out, while a lower standard deviation means that the possible returns are more tightly clustered around the expected return.

To calculate the standard deviation, we first need to calculate the variance, which is the average of the squared deviations from the expected return.

To calculate the variance, we first calculate the deviation of each possible outcome from the expected return. For example, the deviation of a 5% return from the expected return of 1.56% is 5% - 1.56% = 3.44%.

We then square each deviation and multiply it by the probability of that outcome. We do this for each possible outcome, and then sum the results to get the variance. In this case, the variance is 26.7424, which means that the possible returns are quite spread out.

The coefficient of variation is a measure of the risk per unit of return. It is calculated by dividing the standard deviation by the expected return and then multiplying by 100% to get a percentage. In this case, the coefficient of variation is 331.25%, which means that the investment is quite risky relative to its expected return.

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a statistics professor asks each of the students in an introductory statistics class to fill out a survey. there are only 10 students in the class, and each one filled out the survey. one of the questions asked students to state their age. the data are included below. use a ti-83, ti-83 plus, or ti-84 to calculate each of the population standard deviation and the population variance. round your answers to one decimal place. do not use rounded intermediate values to calculate either parameter. age of students 24 34 18 26 23 35 25 24 19 helpcopy to clipboarddownload csv provide your answer below:

Answers

Based on the provided data, the population standard deviation is 6.0 and the population variance is 36.0.

To calculate the population standard deviation and variance using a TI-83, TI-83 Plus, or TI-84 calculator, follow these steps:

1. Press the "STAT" button, and then select "Edit" to enter the data.

2. Enter the ages of the students into a list. For example, you could enter the ages into list L1.

3. Once you have entered the data, press the "STAT" button again, and then select "CALC."

4. Choose "1-Var Stats" and enter the list name that contains the data (L1 in this case). Press "ENTER" to see the result.

5. The calculator will display a list of statistics, including the population standard deviation (σx) and the population variance (σx²). Round these values to one decimal place.

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