The closest solution to this total among the available possibilities is 0.68, indicating that the portfolio is likely to surpass its benchmark in three or fewer quarters over the course of a year.
What is probability?The field of mathematics concerned with probability is known as probability theory. Although there are various distinct interpretations of probability, probability theory approaches the idea rigorously mathematically by articulating it through a set of axioms.
Here,
The probability that the portfolio outperforms its benchmark in three or fewer quarters over the course of a year is the sum of the probabilities of outperforming the benchmark in exactly 0 quarters, 1 quarter, 2 quarters, and 3 quarters.
Since the probability of outperforming the benchmark in any quarter is 0.75, the probability of not outperforming the benchmark in a quarter is 1 - 0.75 = 0.25.
The probability of not outperforming the benchmark in exactly 0 quarters is 0.25⁰ = 1
The probability of not outperforming the benchmark in exactly 1 quarter is 0.25¹= 0.25
The probability of not outperforming the benchmark in exactly 2 quarters is 0.25² = 0.0625
The probability of not outperforming the benchmark in exactly 3 quarters is 0.25³ = 0.015625
So, the probability of outperforming the benchmark in exactly 0 quarters, 1 quarter, 2 quarters, and 3 quarters is 1 - 0.25⁰, 1 - 0.25¹, 1 - 0.25², and 1 - 0.25³, respectively.
The sum of these probabilities is the probability of outperforming the benchmark in three or fewer quarters over the course of a year:
P(outperform in three or fewer quarters) = 1 - 0.25⁰ + 1 - 0.25¹ + 1 - 0.25² + 1 - 0.25³
This expression can be calculated to get an exact answer, but to get the closest answer to the options given, we can round off the intermediate results to 2 decimal places:
P(outperform in three or fewer quarters) = 1 + 0.75 + 0.94 + 0.98
The closest answer to this sum among the options given is 0.68, so the probability that the portfolio outperforms its benchmark in three or fewer quarters over the course of a year is closest to 0.68.
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Factorise: [tex]x^3-23x^2+142x=120.[/tex]
Factor of the expression are,
⇒ (x - 1) (x - 12) (x - 10)
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The equation is,
⇒ x³ - 23x² + 142x - 120 = 0
Now, Put x = 1;
⇒ x³ - 23x² + 142x - 120 = 0
⇒ 1 - 23 + 142 - 120 = 0
⇒ 0 = 0
Thus, One factor of the equation is,
⇒ (x - 1)
Now, After divide we get;
⇒ (x³ - 23x² + 142x - 120 ) ÷ (x - 1)
⇒ x² - 22x + 120
⇒ x² - (12 + 10)x + 120
⇒ x² - 12x - 10x + 120
⇒ x (x - 12) - 10 (x - 12)
⇒ (x - 12) (x - 10)
Thus, Factor of the expression are,
⇒ (x - 1) (x - 12) (x - 10)
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Please help I have a learning disabilty and need help with this
Evaluate each expression if a = 9, b = 3
15b + a^2
Answer ____________________
Calculate the ratio of the areas of the two similar figures
The ratio of the areas of the two similar figures is 9 : 16.
Ratio in mathWe can use comparisons or ratios to compare the size of an object with other objects. The quantity of an object can be in the form of length, speed, mass, time, number of objects, and so on.
For example, penguins have 2 legs, while dogs have 4 legs. We say that the ratio of the number of legs above can be written in three ways, namely:
2 to 4, 2 to 4, or 2/4.
The writing above is read: a comparison of 2 to 4, a comparison between 2 and 4, or a comparison of 2 to 4.
The order of the numbers in the comparison is important and should receive special attention. The first number in the comparison must be written as a numerator, if the comparison is written in fractional form.
Example:
The ratio of the number of penguin and dog legs is 2: 4 or 2/4
The ratio of the number of dog and penguin legs is 4 : 2 or 4/2
According to the question above:
Side figure 1 : side figure 2
6 : (6+2)
6 : 8
3 : 4
The ratio of the areas of two similar figure is equal to the square of the ratio of the corresponding sides.
Squaring the ratio 3 : 4, gives us:
3² : 4² = 9 : 16
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Carson ordered a set of beads. He received 48 beads in all. 24 of the beads were blue. What percentage of the beads were blue?
Answer:
Step-by-step explanation:
50%. 24 is half of 48. So, 50% of 48 if 24.
A new hybrid car sold in the United States reports a fuel usage of 54mpg Write the equivalent rate in kilometers per liter. Round your answer to the nearest hundredth, if necessary.
Answer: To convert miles per gallon to kilometers per liter, we can use the conversion factor 1 mile = 1.60934 kilometers and 1 gallon = 3.78541 liters.
54 miles per gallon is equivalent to:
54 * 1.60934 km/mile / (1 gallon * 3.78541 liters/gallon) = 21.63 km/liter.
Rounding to the nearest hundredth, the equivalent rate is 21.63 km/liter.
Step-by-step explanation:
in how many ways can the board of trustees pick a president? the president should be one of the 1000 professors.
The Board of Trustees can choose a president and a provost in 1000 different ways because there are 1000 professors on the college's faculty. The concept used in this is permutations and combinations.
What are combinations?
A combination in mathematics is a choice made from a group of separate elements where the order of the selection is irrelevant (unlike permutations). Three fruits, such as an apple, an orange, and a pear, for instance, can be combined into three different pairs: an apple and a pear, an apple and an orange, or a pear and an orange. A k-combination of a set S is officially defined as a subset of S's k unique elements. So, if and only if each combination contains the same elements, two combinations are said to be identical.
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Correct question:
Suppose that a college has 1000 professors.
a) In how many ways can the Board of Trustees pick a president? The president should be one of the 1000 professors.
Enter the interval equivalent to
2
<
x
≤
5
or
x
>
7
The interval equivalent to each range is given below
x = 3 - 5
x' = 7,8,9
What exactly is interval notation?
Which section of the number line, from left to right, is included in the answer can be determined using interval notation (i.e., which part of the number line is shaded).
Endpoints not included in the solution are denoted by parentheses, whereas endpoints that are included are denoted by brackets.
We have that
The interval equivalent to each range is given below
x = 3 -5
x' = 7,8,9
From the Question we are told that
2 < x ≤ 5 or x >7
Generally the interval equivalent is given as follow from the number line
(...-1,0,1...)
For 2 < x ≤ 5
Here this means x is less than 2 and less than or equal to 5
Therefore
A range of numbers
x = 3 - 5
For x >7
Here x is greater than 7 i.e
x' = 7,8,9
in conclusion
The interval equivalent to each range is given below
x = 3 - 5
x' = 7,8,9
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Marie’s recipe for one batch of chocolate chip cookies calls for 13
cup of chocolate chips. If Marie is making 5 batches of cookies, how many cups of chips will she need?
For 5 batches, 65 cups of chocolate chips are needed.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.
Given is that Marie’s recipe for one batch of chocolate chip cookies calls for 13 cup of chocolate chips. If Marie is making 5 batches of cookies.
For 1 batch - 13 cups of chocolate chips are needed.
For 5 batches - (13 x 5) = 65 cups of chocolate chips are needed.
Therefore, for 5 batches, 65 cups of chocolate chips are needed.
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Judith's vegetable patch is 21 feet wide and 25 feet long. Judith wants to build a fence around the vegetable patch. The fencing material costs $1.00 per foot. How much would it cost in total to build the fence?
The length of the fencing will be 92 feet. And the total cost of the fencing will be $92.
What is the perimeter of the rectangle?Let W be the rectangle's width and L its length.
The perimeter of the rectangle will be defined as the total length of all of its sides. So the rectangle's perimeter will be
Perimeter of the rectangle = 2(L + W) units
Judith's vegetable patch is 21 feet wide and 25 feet long. Judith wants to build a fence around the vegetable patch. The length of fencing is given as,
P = 2(21 + 25)
P = 2 x 46
P = 92 feet
The fencing material costs $1.00 per foot. Then the total cost of the fencing is given as,
Total cost = $1 x 92
Total cost = $92
The length of the fencing will be 92 feet. And the total cost of the fencing will be $92.
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what is 478 divided by 93 i need the steps and work included i only have 20 minutes
Answer:
I wasn't sure if you had wanted decimals or remainder so here is both.
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
Step:Start by setting it up with the divisor 93 on the left side and the dividend 478 on the right side .
The divisor (93) goes into the first digit of the dividend (4), 0 time(s). Therefore, put 0 on top:
Step 3:
Multiply the divisor by the result in the previous step (93 x 0 = 0) and write that answer below the dividend.
Step 4:
Subtract the result in the previous step from the first digit of the dividend
Move down the 2nd digit of the dividend (7) like this:
The divisor (93) goes into the bottom number (47), 0 time(s). Therefore, put 0 on top:
Step 7:
Multiply the divisor by the result in the previous step (93 x 0 = 0) and write that answer at the bottom:
Need a little help please
Answer:?=-9
Step-by-step explanation:
9x+3x-4-5=12x-9
Each of three friends flips a coin 82 times. The results for each friend are shown in the tables. Find the relative frequency for the event "tails" for each friend. If the friends combine their results to get 114 heads and 132 tails, what is the relative. frequency for the event "tails"? Use pencil and paper. Suppose each friend flips a coin 820 times. Is there a value you would expect the relative frequency for the event "tails"
to be close to?
The relative frequency for the event tails is given as follows:
53.64%.
The expected relative frequency should be closed to the theoretical probability of 0.5.
How to obtain the relative frequency?The relative frequency is given by the division of the number of desired outcomes by the number of total outcomes.
The relative frequency for all the throws is obtained as follows:
132/(114 + 132) = 132/146 = 53.64%.
Considering a fair coin, it is equally as likely to come up heads or tails, hence increasing the number of trials, the relative frequency of each outcomes is expect to be closer to 50%.
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Identify the percent of change from 2/5 to 1/3 as an increase or a decrease. Then find the percent of change. Round to the nearest tenth of a percent
The percent of change is -1/15 which represent a decrease. percentage of change is 6.7%
What is percentage change?
Percentage change is the difference coming after subtracting the old value from the new value and then divide by the old value and the final answer will be multiplied by 100 to show it as a percentage. Generally, to convert a fraction into a percent, we multiply it by 100.
From the question,
The old amount is 2/5
The new amount is 1/3
We substract the new amount from the old amount
1/3 - 2/5
= -1/15
The percent of change is -1/15 which represent a decrease
To calculate the percentage change
1/15 x 100
= 6.7%
hence, the percentage of change is 6.7%
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Divide using long division. (9x^3-18x^2-x+2) /(3x+1)
Answer: To divide 9x³ - 18x² - x + 2 by 3x + 1 using long division, we can follow the following steps:
Step 1: Divide the first term of the dividend 9x³ by the first term of the divisor 3x. The result is 3x².
Step 2: Multiply the divisor 3x + 1 by 3x². The result is 9x³ + 3x².
Step 3: Subtract 9x³ + 3x² from 9x³ - 18x² - x + 2. The result is -18x² - 4x + 2.
Step 4: Repeat the division and multiplication process by dividing the first term of the new dividend, -18x², by the first term of the divisor, 3x. The result is -6x.
Step 5: Multiply the divisor 3x + 1 by -6x. The result is -18x + 6.
Step 6: Subtract -18x + 6 from -18x² - 4x + 2. The result is -4x² + 10.
Step 7: Repeat the division and multiplication process by dividing the first term of the new dividend, -4x², by the first term of the divisor, 3x. The result is -4/3 x.
Step 8: Multiply the divisor 3x + 1 by -4/3 x. The result is -4/3 x + 4/3.
Step 9: Subtract -4/3 x + 4/3 from -4x² + 10. The result is 10 - 4/3.
Thus, the final answer is:
(9x³ - 18x² - x + 2) / (3x + 1) = 3x² - 6x - 4/3 x + 4/3 + 10
Step-by-step explanation:
In the real world, even though you make adjustments to a recipe to accommodate the number of people you need to serve, you sometimes round the amount of an ingredient instead of using an exact amount. Which ingredient would it make more sense to round rather than coming up with the exact amount? Why?
The ingredient you need to serve, round the amount of an ingredient instead of using an exact amount, is vanilla extract.
What is rounding a number?Rounding is a process to estimate a particular number in a context.
Given that, a recipe serving 10 persons, but you need to serve 30, we need to multiply the amount of each ingredient by to adjust the recipe
Here we have a recipe that works for 10 serves.
Then, if we want to make 30 servings, we need to use that recipe 3 times. (because x·10 = 30, then x = 30/10 = 3)
This would be equivalent to multiply each ingredient by 3.
for 30 cupcakes, we need:
3 cups of vegetable oil.
3 cups of all-purpose flour
(because for each one of these ingredients, we needed only 1 cup to make 10 cupcakes).
for 10 cupcakes, we need 1 teaspoon of vanilla.
for 30 cupcakes we need 3 teaspoons of vanilla, the difference is 3 - 1 = 2.
So the difference is 2 teaspoons.
About which quantities we should round are those where we may have mixed numbers or big numbers.
For example, we have 4 tablespoons of sour cream for 10 servings, then for 30 servings we should have:
3×4 = 12 tablespoons.
We could round this down to 10 tablespoons.
Hence, the ingredient you need to serve, round the amount of an ingredient instead of using an exact amount, is vanilla extract.
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Every year Chana uses her income form her job to pay for 80% of her college tuition. Next year Chana will need to contribute $2,000 toward her tuition. Next year the tuition will be $600 more then this year’s tuition. How much is this years tuition? PLEASE HELP! STEP BY STEP EXPLANATION IF YOU CAN!
This years tuition is $1900
Let us assume that the next year tuition fee be x dollars.
The next year's tuition will be $2000 which is $600 more than this year's tuition fee.
Chana will pay $2000 which is 80 percent of her college tuition.
Using percentage formula we get an equation,
x × (80/100) = 2000
we solve this equation for x.
x = (2000 × 100)/80
x = 2500
If the next year's tuition fee is $600 more than this year's tuition fee, then this year's tuition fee would be,
2500 - 600 = 1900 dollars
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What is the slope of the line below?
Answer:
-1/2 is the answer of this question
Please help!!! I’m really confused and need help
110 miles/hr is the interval with highest average speed. Option C is correct.
Rate of change of a graphThe given diagram is a graph with different rate of change. According to the graph, we are to determine which interval has the highest average speed.
Average speed = change in distance/time
Considering the change between t = 4 and t = 5;
Average speed = 270 - 160/5 - 4
Average speed= 110/1
Average speed = 110 miles/hr
Hence the interval that has the highest average speed is 110 miles/hr
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a cone has a volume of 48(pi) cubic units. what is a possible height and radius thats could make this cone?
r=____
h=___
Answer: h=12 r=√12
Step-by-step explanation:
volume of cone=πr^2 h/3
πr^2 h/3=48π
πhr^2=144π
hr^2=144
h=12 r=√12
Ella invests £7000 for 2 years in an account paying compound interest.
In the first year, the rate of interest is 3%
In the second year, the rate of interest is 1.5%
Work out the value of Ella's investment at the end of 2 years.
Answer:
The formula for the future value of a single sum is:
F = P * (1 + r/n)^(nt)
Where:
F is the future value
P is the principal (the initial deposit)
r is the annual interest rate
n is the number of compounding periods per year
t is the number of years
For our calculation, we have:
P = £7000
r1 = 3% = 0.03
r2 = 1.5% = 0.015
n = 1 (annual compounding)
t1 = 1 (first year)
t2 = 1 (second year)
So, the future value of Ella's investment at the end of the first year is:
F1 = £7000 * (1 + 0.03/1)^(1 * 1) = £7000 * (1.03)^1 = £7,210
And the future value of Ella's investment at the end of the second year is:
F2 = £7,210 * (1 + 0.015/1)^(1 * 1) = £7,210 * (1.015)^1 = £7,333.15
So, at the end of 2 years, the value of Ella's investment is £7,333.15.
Step-by-step explanation:
5) The floor of a room is in the shape of
a rectangle. The room is c meters long
and the width of the room is 2cm less
than its length.
a) write in terms of c;
i) the width of the floor
ii) the area of the floor
b) If the area of the room is 15cm²,
write down an equation in c to show
this information.
c) Use the equation to find the length
and width of the room.
Answer: a) i) The width of the floor can be expressed in terms of c as: w = c - 2 cm.
ii) The area of the floor can be expressed in terms of c as: A = c * (c - 2) cm^2.
b) If the area of the room is 15 cm^2, then we can write the equation as:
c * (c - 2) = 15.
c) Solving for c, we get:
c^2 - 2c - 15 = 0.
Using the quadratic formula, we find that:
c = 5 or c = -3.
Since the length of the room cannot be negative, we choose c = 5.
Therefore, the length of the room is 5 cm and the width of the room is 3 cm.
Step-by-step explanation:
Work out the value of
(1 1/3)²
Answer:
1.77777777778
neeed helppp
schoology
Answer:
23°
Step-by-step explanation:
As We All Know Sum Of Angles In A Straight Line is 180° so,
157° + a = 180°
or, a = 180° - 157°
or, a = 23°
what information can you obtain about the scores in a regular frequency distribution table that is not available from a grouped table?
A regular frequency distribution table provides more detailed and accurate information about the scores in a dataset than a grouped frequency distribution table.
In a regular frequency distribution table, individual scores and their corresponding frequencies are listed, whereas in a grouped frequency distribution table, the scores are grouped into intervals and the frequencies of the intervals are listed.
The following information can be obtained from a regular frequency distribution table but not from a grouped table:
Individual Scores: A regular frequency distribution table lists individual scores, providing a clear understanding of the exact values that make up the data.
Accuracy: A regular frequency distribution table provides a more accurate representation of the data as it doesn't involve grouping the scores into intervals, which can lead to loss of information.
Outliers: In a regular frequency distribution table, outliers (unusual or extreme values) can be easily identified as they stand out from the other scores.
Shape of Distribution: A regular frequency distribution table provides a more detailed representation of the distribution, allowing for easier evaluation of the shape of the distribution, such as whether it is symmetrical, skewed, etc.
Measures of Central Tendency: Measures of central tendency, such as the mean, median, and mode, can be more accurately calculated from a regular frequency distribution table as the exact values of the scores are available.
In conclusion, a regular frequency distribution table provides more detailed and accurate information about the scores in a dataset than a grouped frequency distribution table.
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2. A student receives test scores of 62, 83, and 91. The student's term project score is 88 and her homework score
is 76. Each test is worth 20% of the final grade, the term project is 25% of the final grade, and the homework
grade is 15% of the final grade. What is the student's mean score in the class?
3. The median for the given set of six ordered data values is 27.5. What is the missing value? ______
5 12 23 ______ 41 51
4. For the following data, approximate the mean number of emails received per day.
2. The mean score is 80.6
3.The missing term is 32.
What is Mean?The arithmetic mean is found by adding the numbers and dividing the sum by the number of numbers in the list.
Given:
2. A student receives test scores of 62, 83, and 91.
Test A is 0.20 of the total and scores 62.
Test B is 0.20 of the total and scores 83.
Test C is 0.20 of the total and scores 91.
Test F is 0.25 of the total and scores 88.
Work H is 0.15 of the total and scores 76.
Now, Multiply the scores:
= 0.2 x 62 = 12.4
= 0.2 x 83 = 16.6
= 0.2 x 91 = 18.2
= 0.25 x 88 = 22
= 0.15 x 76 = 11.4
Now, add the scores to get the
= 12.4 + 16.6 + 18.2 + 22 + 11.4
= 80.6
3. let the missing term or 4th term be x.
So, The median is sum of 3rd and 4th term.
27.5 = 23 + x/ 2
55 = 23+ x
x= 32
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The diagram shows a circle with centre O and radius 2.5cm.
A, B & C lie on the circumference of this circle.
Given that AC is a diameter of the circle and AB = 4cm, work out the length of BC
The length of chord BC is 3 cm
How to work out the length of BCFrom the question, we have the following parameters that can be used in our computation:
A, B & C lie on the circumference of this circle.AC is a diameter of the circle and AB = 4cmThe angle in a semicircle is 90 degrees
This means that
B = 90 degrees
Using the pythagorean theorem, we have
AC^2 = AB^2 + BC^2
This gives
5^2 = 4^2 + BC^2
So, we have
BC^2 = 9
This gives
BC = 3
Hence, the length s 3 units
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The distribution of tips given by customers who buy one cup of coffee is bimodal with a mean of $0. 29 and a standard
deviation of $0. 1164. If a random sample of 50 tips from customers who buy one cup of coffee is selected, is it
appropriate to calculate the probability of a sample mean being more than $0. 32 using an approximately Normal
model?
Yes, it is appropriate to calculate the probability of a sample mean being more than $0.32 using an approximately normal model, under certain assumptions.
What is Probability?
Probability is an area of mathematics that deals with numerical descriptions of how probable an event is to occur or how likely a statement is to be true. The probability of an event is a number between 0 and 1, where 0 denotes the event's impossibility and 1 represents certainty.
Yes, it is appropriate to calculate the probability of a sample mean being more than $0.32 using an approximately normal model, under certain assumptions.
The central limit theorem states that the distribution of the sample means approaches a normal distribution, as the sample size increases, regardless of the shape of the population distribution. So, for large enough sample sizes, the sample mean is approximately normally distributed, even if the population distribution is not normal.
In this case, a sample size of 50 is considered large enough to use the normal approximation. Therefore, we can assume that the distribution of the sample mean is approximately normal, with mean equal to the population mean of $0.29, and standard deviation equal to the standard deviation of the sample mean, which can be calculated as the standard deviation of the population divided by the square root of the sample size.
The standard deviation of the sample mean is given by the formula:
[tex]$\sigma_{\bar{x}} = \frac{\sigma}{\sqrt{n}} = \frac{0.1164}{\sqrt{50}} \approx 0.039$[/tex]
Using this information, we can calculate the desired probability as the area under the normal curve to the right of $0.32$. This can be done using a standard normal table or a normal probability calculator.
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obby saw
40
insects at a picnic and recorded their types in the following table.
Insect Number
Fly
8
Ant
22
Bee
4
44
Ladybug
6
Match the following ratios to what they describe.
Description
Ratio
Answer:
The ratio of flies to all insects is 1:5
For every 1 bee, there are 10 insects
Step-by-step explanation:
give brainlist please
Last year, Debra biked n miles. This year, she biked 345 miles. Using n, write an expression for the total number of miles she biked.
Answer: 345 + n
For finding the total, we have to add 345 with n.
in exercise 1 and 2 determine whether the triangles are similar. if they are write a similarity statement
Answer:
△ABC ~ △MLN
Step-by-step explanation:
Because the sum of all the angles in a triangle equals 180, we can find the missing angle in both triangles
△ABC
c + 90 + 51 = 180
c = 39
△MLN
[tex]l[/tex] + 90 + 39 = 180
[tex]l[/tex] = 51
Because <C has the same angle degree as <N, <B has the same angle degree as <L, and <A has the same angle degree as <M, then △ABC must be similar to △MLN