Answer:
the sample mean is never the same as population
Answer:
b
Step-by-step explanation:
PLZPLZPLZPLZ help me!
Answer:
12 square units.
Step-by-step explanation:
We must find the area of each shape and add together. The area of a triangle is 1/2 base times height. The smaller triangles area is 2 and the larger triangle's area is 6. The area of the square is 4... so when all added together, we have 12.
Paul creates a CD by mixing together
songs that are either 3 minutes or
4 minutes long. His CD has 22 songs
and is 78 minutes long. How many
three-minute and how many four-minute
songs did he use?
Answer:
Paul created 10 three minutes songs and 12 four minutes songs.
Step-by-step explanation:
The song he created on his CD is either 3 minutes long or 4 minutes long.
His CD has 22 songs and is 78 minutes. The number of 3 minutes and 4 minutes song can be calculated below.
Let
a = number of 3 minutes song
b = number of 4 minutes song
number of song = 22
a + b = 22............(i)
3a + 4b = 78.........(ii)
Make a subject of the formula in equation (i)
a = 22 - b
Insert the value of a in equation (ii)
3(22 - b) + 4b = 78
66 - 3b + 4b = 78
b = 78 - 66
b = 12
insert the value of b in equation (i)
a + b = 22
a + 12 = 22
a = 22 - 12
a = 10
Paul created 10 three minutes songs and 12 four minutes songs.
Does anyone think your life is a video game?
Answer:Yes!
Step-by-step explanation:
Answer:
Yes i really do because i love video games i play Roblox and that i always play and that i feel like i am in Royale High For Real
Step-by-step explanation:
Royale High is my favorite game
y−3=2(x+1)
What is the solution (-1,_)
Answer:
(-1,3)
Step-by-step explanation:
hello :
y−3=2(x+1)
if x= -1 y-3 = 2(-1+1)
y-3=0 so : y=3
(-1,3)
Write the number five million four thousand three hundred in standard form.
Answer:
5,004,300
Step-by-step explanation:
which equation is the slop formula
Answer:
y=mx+b
Step-by-step explanation:
m is the slope
b is the y-intercept
Don't believe me? Ask Google!
520 is 65% of what number?
Please I really need the answer for this
Answer:
The third option
Step-by-step explanation:
GPE = mgh
Since the baseball has a larger mass as compared to the ping pong ball and is 50 feet off the ground which means that it has the highest height, the GPE will be the greatest
I need help with question 8 please
Answer:
38
Step-by-step explanation:
Answer:
38
Step-by-step explanation:
24, 29, 34, 36, 40, 49, 90, 94
Median: 36+40/2=76/2=38
50:19
All else being equal, if you cut the sample size in half, how does this affect the margin of error when using the sample to make a
statistical inference about the mean of the normally distributed population from which it was drawn?
ME.
The margin of error is multiplied by /05
The margin of error is multiplied by 12
The margin of error is multiplied by 05,
The margin of error is multiplied by 2.
Save and Exit
Answer:
The margin of error is multiplied by 1.41, which is 1 divided by the square root of 5.
Step-by-step explanation:
The margin of error is:
[tex]M = z*\frac{\sigma}{\sqrt{n}}[/tex]
In which z is related to the confidence level, [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
The margin of error is inverse proportional to the square root of the sample size.
Then
Sample size n:
[tex]M = z*\frac{\sigma}{\sqrt{n}}[/tex]
Modified(half the sample size):
[tex]M_{M} = z*\frac{\sigma}{\sqrt{0.5n}}[/tex]
Ratio
[tex]\frac{M_{M}}{M} = \frac{z*\frac{\sigma}{\sqrt{0.5n}}}{z*\frac{\sigma}{\sqrt{n}}} = \frac{\sqrt{n}}{\sqrt{0.5n}} = \frac{\sqrt{n}}{\sqrt{0.5}*\sqrt{n}} = \frac{1}{\sqrt{0.5}} = 1.41[/tex]
The margin of error is multiplied by 1.41, which is 1 divided by the square root of 5.
Here are the 30 best lifetime baseball batting averages of all time, arranged in order from lowest to highest:
0.329, 0.330, 0.331, 0.331, 0.333,0.333,0.333, 0.334, 0.334, 0.334, 0.336,
0.337, 0.338, 0.338, 0.338, 0.340, 0.340, 0.341, 0.341, 0.342, 0.342, 0.342,
0.344, 0.344, 0.345, 0.346, 0.349, 0.356, 0.358, 0.366
A stemplot is one way to display these batting averages, as shown below. In
this type of display, the entry 0.36|6 denotes one occurrence of the batting
average______.
0.32|9
0.33|01133344467888
0.34|1001122244569
0.35|168
0.36|6
A. 0.366
B. 0.3606
C. 0.360
D. 0.336
Answer:
D
Step-by-step explanation:
0.36|6=0.366
The solution is : The given statement is False.
What is histogram?A histogram is an approximate representation of the distribution of numerical data. A histogram is a graph that shows the frequency of numerical data using rectangles. The height of a rectangle (the vertical axis) represents the distribution frequency of a variable (the amount, or how often that variable appears).
here, we have,
We are given a the 30 data points which represent the best lifetime baseball batting averages of all time, arranged in order from lowest to highest.
As we know that we could obtain a frequency table from the following set of data points and histogram is a good way to represent the frequency data. ( i.e. a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins ).
Hence, the given statement,
A frequency table for these data can best be graphically displayed as a bar graph. That is, it should not be displayed as a histogram is a FALSE STATEMENT.
To learn more on histogram click:
brainly.com/question/17145899
#SPJ7
mitchell drew a card from a standard deck of playing cards. what is the probability that he drew a queen, geven that the card was red
Answer:
2/52
Step-by-step explanation:
because there are only two red Queens and there is 52 cards in a deck
Answer:
2/52
Step-by-step explanation:
In a deck of cards, there are 2 red queens and in total 52 cards.
*Please give Brainliest to the person on top because they answered first! :)
Which of the following functions has:
Domain: LaTeX: \left(-\infty,\:\infty\right)( − ∞ , ∞ )
Range: [LaTeX: 0,\:\infty0 , ∞ )
Answer:
We can't see the functions. We also can read the domain or the range. Personal suggestion is to write the domain and range (-infity, 0) but substitute in what applies to your situation.
Step-by-step explanation:
A snail creeks up a plank 8 cm a day and slides back down 15 millimeters each night. Write a numerical pattern showing the number of millimeters where the snail changes direction. On which day would the snail have moved 275 millimeters from its starting point?
Answer: The 5th day
Step-by-step explanation:
Total daily movement :
Upward movement = 8cm
Downward movement = 15mm
Converting the upward movement to millimeters ; 1 centimeter = 10 millimeters
Upward movement = 8 × 10 = 80 millimeters
Daily movement can beodelled using the equation :
Distance = (80mm - 15mm)h
Where h is the number of days
Movement per day = 65mm
To move a distance of 275mm from its starting position:
Number of days = 275mm/ 65mm
Number of days = 4.23
Therefore the snail would have moved 275 millimeters from its starting point on the 5th day
Find the volume of this rectangular prism.
Answer:
200 units³
Step-by-step explanation:
The formula for the volume of a rectangular prism is:
V = lwh
where l is the length, w is the width, and h is the height
Substitute with the given values:
V = lwh
V = (10)(4)(5)
Multiply:
V = (10)(4)(5)
V = (40)(5)
V = 200
Therefore, the volume of the rectangular prism is 200 cubic units.
The figure shows two regular pentagons. What is the perimeter of the larger pentagon?
A. 5n
B. 10n
C. 15n
D. 60n
Answer:
As shown in picture,
perimeter of inside pentagon: p1 = n + n + n + n + n = 5n
ratio between inside pentagon and outside pentagon: r = 6/(6 + 6) = 1/2
=> perimeter of outside pentagon: p2 = 2 x p1 = 2 x 5n = 10n
=> Option B is correct
Hope this helps!
:)
Use the graphing calculator to graph the parent function.
f(x) = log(x)
Add the translated function.
f(x) = log (x-h) + k
Plug in different values of h and k to answer the following questions.
What happens when h is positive?
What happens when h is negative?
What happens when k is positive?
What happens when k is negative?
Answer:
What happens when h is positive?
The asymptote of the graph shifts right by that amount.
What happens when h is negative?
The asymptote of the graph shifts left by that amount.
What happens when k is positive?
The entire graph shifts up by that amount.
What happens when k is negative?
The entire graph shifts down by that amount.
Answer:
answer is verified1.)c
2.)d
3.)a
4.)b
Step-by-step explanation:
This is the question
Answer:
[tex]=\left(9a-8\right)\left(a+1\right)[/tex]
Step-by-step explanation:
[tex]9a^2+a-8\\\mathrm{Break\:the\:expression\:into\:groups}\\=\left(9a^2-8a\right)+\left(9a-8\right)\\\mathrm{Factor\:out\:}a\mathrm{\:from\:}9a^2-8a\mathrm{:\quad }a\left(9a-8\right)\\9a^2-8a\\\mathrm{Apply\:exponent\:rule}:\quad \:a^{b+c}=a^ba^c\\a^2=aa\\=9aa-8a\\\mathrm{Factor\:out\:common\:term\:}a\\=a\left(9a-8\right)\\=a\left(9a-8\right)+\left(9a-8\right)\\\mathrm{Factor\:out\:common\:term\:}9a-8\\=\left(9a-8\right)\left(a+1\right)[/tex]
So the right answer is (9a-8)(a+1)
Look at the attached picture
Hope it will help you
A survey asked 247 students what their favorite subject was. Of those students, there were 115 boys. One hundred two students answered that their favorite subject was Social Studies, 50 of which were boys. Forty girls answered that their favorite subject was Math while 25 boys answered English. The marginal frequency of students answering science is 0.1214. The probability that a student who answered science was a girl is 0.667.
5, 10, 20, 25, 30, 45, 50, 52, 70
Use the numbers above to complete a two-way frequency table. Numbers may be used more than once or not at all
Answer:
so what was the answer?
Step-by-step explanation:
6+0 plz help me so hard
Answer:
6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
Select ALL the correct answers.
Natalie buys a new car. In the first month, the odometer on the car records 800 miles. From past experience, she expects to drive 900 miles per month.
Select all the functions that can be used to find the number of miles, f(n), recorded on the odometer after n months.
Answer:
[tex]\begin{aligned}\bullet\ &f(1)=800;f(n)=f(n-1)+900, \text{for $n\ge 2$}\\ \bullet\ & f(n)=900n-100\end{aligned}[/tex]
Step-by-step explanation:
See attachment for the figure.
Using arithmetic sequence with a first term of 800 and a common difference of 900. The general form for such a sequence is given by,
an = a1 +d(n -1)
an = 800 +900(n -1) = 900n -100
If n is the function, this can be written as,
f(n) = 900n -100
When considered as a recursive relation, we find the first term is still 800:
f(1) = 800
and that each term is 900 more than the previous one:
f(n) = f(n-1) +900 . . . . for n ≥ 2
You need to consider that huge numbers of the different answer decisions are debasements of either of these structures, so you should look at them cautiously.
May 26- 1
May 27- 6
May 28- 39
May 30- 141
May 31- 169
June 1- 251
Please look at the following numbers listed above and determine a relationship:
Are they exponential or linear? Why?
Answer:
neither exponential nor linear
Step-by-step explanation:
A linear relationship will show a common difference between adjacent value. Here, the first differences between the first three values are 5 and 33. They are not the same, so the relation is not linear.
__
An exponential relationship will show first differences that are continuously increasing or decreasing by increasing or decreasing amounts (respectively).
As we showed, the difference between May 28 and May 27 is 33. This is more than the previous difference. However, the difference between May 30 and May 31 is only 28, which is less than a previous difference.
The relation is not exponential.
__
A graph points up the non-linearity of the relation.
What’s the area of the shape
Answer:
the answer is 37.68
i hope that helps
Correct answers only please!
Quincy has $6,000 in a savings account that earns 4% interest, compounded annually.
To the nearest cent, how much interest will he earn in 5 years?
Use the formula B = p(1 + r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
Answer:
A = $ 7,299.92
A = P + I where
P (principal) = $ 6,000.00
I (interest) = $ 1,299.92
Step-by-step explanation:
A = P(1 + r/n)^nt
Where:
A = Accrued Amount (principal + interest)
P = Principal Amount
I = Interest Amount
R = Annual Nominal Interest Rate in percent
r = Annual Nominal Interest Rate as a decimal
r = R/100
t = Time Involved in years, 0.5 years is calculated as 6 months, etc.
n = number of compounding periods per unit t; at the END of each period
4. There are 10 cheerleading squads performing in a competition. The
order of the performances is determined at random. What is the
probability that your squad performs first and your friend's squad performs
second?
Answer:
0.011 or 1/90
Step-by-step explanation:
Since the order of the performances is determined at random the probability of each squad is constant that 1/10
The probability of your squad is 1/10
Given that the first selected was yours (1/10) nine squads are left . Therefore the probability of your friends squad is 1/9.
Hence the probability that your squad performs first and your friend's squad performs second is (1/10 * 1/9) 1/90 or 0.011
need help ASAP!!!! needs explanation as well
Answer:
1. The rocket was launched from a height of 180 feet.
=> Valid because at time = 0 sec, height = 180 feet (as shown in table)
2.The maximum height of the rocket occurred 3 seconds after launch.
=> Valid because at time = 3 sec, height = 324 feet (greatest value in second row of table).
3.The rocket was in the air approximately 6 sec before hitting ground.
=> Not valid because the time in table in about 7 sec (from 0 to 7), but all of the heights are greater than 0 (the rocket has not hit the ground yet).
4. The rocket was above 300 feet for approximately 2 seconds.
=> Valid because from sec 2 to sec 4: the height is greater than 300 (308, 324, and 308)
=> Option 3 is not valid.
Hope this helps!
:)
last question, please help me.
Answer:
[(20×20)×26]/3 = 3467cm³
Step-by-step explanation:
The volum of a Pyramid is equal to:
Ab × h / 3Ab = Area of the base = 20 × 20 = 400 cm²
h = height = 26 cm
so, yoi have: (400 × 26) / 3
*WILL GIVE BRAINLIEST*
annabelle collected data on the favorite superhero of the students in her class. the table shows the relative frequencies of rows for the data collected:
*picture attached above*
based on the data, which superhero is most likely to be the favorite?
a.) superman
b.) spiderman
c.) batman
d.) wonder woman
Answer:
B - Spider-Man
Step-by-step explanation:
what will the height of the new cones be?
Answer:
1.5
Step-by-step explanation:
You have the same volume which is 24pi. You divide 24 by 16 and get 1.5
In a cartons of bulbs, 90% contain no defective bulbs, 5% contain one defective bulb, 3% contain two defective bulbs, and 2% contain three defective bulbs. Find the mean and standard deviation for the number of defective bulbs.
Answer:
Mean, E(x) = 0.17
Variance, V(x) = 0.12
Step-by-step explanation:
90% contains no defective bulbs, P(X=0) = 0.9
5% contain one defective bulbs, P(X=1) = 0.05
3% contain two defective bulbs, P(X=2) = 0.03
2% contain three defective bulbs, P(X=3) = 0.02
The mean for the number of defective bulbs:
[tex]E(X) = \sum XP(X)\\E(X) = (0*0.9) + (1*0.05) + (2*0.03) + (3* 0.02)\\E(X) = 0 + 0.05 + 0.06 + 0.06\\E(X) = 0.17[/tex]
Variance for the defective bulbs:
[tex]V(x) = (\sum x^{2}P(x) ) - \mu^2[/tex]
[tex]\sum x^{2}P(x) = (0^2*0.9) + (1^2*0.05) + (2^2*0.03) + (3^2* 0.02)\\\sum x^{2}P(x) = 0.05 + 0.12 + 0.12\\\sum x^{2}P(x) = 0.29[/tex]
V(x) = 0.29 - 0.17
V(x) = 0.12