Aaliyah wants to determine how age and gender are related to movie genre preference in her town. She selects a simple random sample of 35 males from the 20- to 30-year age group and records their age, gender, and movie genre preference (comedy, romance, or horror). She also selects an independent simple random sample of 45 females from the 45- to 55-year age group and records the same information. Which is the most important observation about Aaliyah's plan? (3 points)

A. The plan is well conceived and should serve the intended purpose.

B. Her samples are too small.

C. She should have used equal sample sizes.

D. She should have selected the two age groups randomly instead of choosing them specifically.

E. She will be unable to tell whether a difference in movie genre preference is related to a difference in age or to a difference in gender.

Answers

Answer 1

Answer:

The correct option is;

E. She will not be able to tell whether a difference in movie genre preference is related to a difference in age or to a difference in gender

Step-by-step explanation:

The question states that Aaliyah randomly selects the following;

First sample

Sample gender = Males

Sample size = 35

Age bracket of sample = 20 to 30 years

Second sample

Sample gender = Females

Sample size = 45

Age bracket of sample = 45 to 55 years

The plan is to determine how age and gender are related to movie genre preference

Appropriate sample distribution to determine movie genre preference is as follows;

Gender = Male

Age bracket = 20 to 55 years

Gender = Female

Age bracket = 20 to 55 years

Therefore, since the samples selected do not cut across the population of the by age and gender of movie genre preference, she will not be able to tell whether a difference in movie genre preference is related to a difference in age or to a difference in gender.

Answer 2

Answer:

E. She will be unable to tell whether a difference in movie genre preference is related to a difference in age or to a difference in gender.

Step-by-step explanation:


Related Questions

Please help! Will mark brainliest

Answers

Answer:

0 ≤ x ≤ 4

Step-by-step explanation:

we are asked to find all the values of x such that y>0.

for y>0, this means that we will only consider the portion of the graph that is above the x - axis (i.e the part of the graph above y=0)

By observation, we can see that the graph is only above the x-axis between the interval  0 ≤ x ≤ 4  (which is the answer to your question)

Im so confused please help!

Answers

Answer:

18

Step-by-step explanation:

The area of a triangle is given by

A = 1/2 bh where b is the base and h is the height

The base length is 6 and the height is 6

A = 1/2 (6) * 6

A =18

Answer:

B. 18 units²

Step-by-step explanation:

You find the area of the triangle with the dotted lines first:

[tex]\frac{1}{2}[/tex]*b*h

[tex]\frac{1}{2}[/tex]*9*6=

27

The area of the triangle including the dotted lines is 27 units²

Now we need to find the area of the small dotted triangle using the solid line triangle as a hypotenuse.

[tex]\frac{1}{2}[/tex]*b*h

[tex]\frac{1}{2}[/tex]*3*6=

9

The area of the small dotted triangle is 9 units²

To find the area of the solid lined triangle, you need to subtract the area of the small dotted line triangle (9 units²) from the triangle with the dotted lines (27 units²) which is:

27-9=18

The solid lined triangle is 18 units²

Need help ASAP please

Answers

Adding a value at the end shifts the graph up that number of units.

The answer is C.

Which expression has a value greater than 9.862?

Answers

Answer:

the answer is D

Step-by-step explanation:

9,862 times 2/2 = 9862 so that doesn't work

but 9,862 times 4/2 = 19724 and that is greater than 9,862.

Answer: D) 9,862 * [tex]\frac{4}{2}[/tex]

Step-by-step explanation: If a number is not greater than one, then the number will actually decrease. Let's turn [tex]\frac{4}{2}[/tex] into a decimal.

4 ÷ 2 = 2

9,862 * 2 = 19,724

I hope this helps!

Which describes the correlation shown in the scatterplot?

A) there is a positive correlation in the data set
B) there is a negative correlation in the data set
C) there is no correlation in the data set
D) more points are needed to determine the correlation

Answers

B) the negative correlation starts at the top left and goes down to the bottom right positive would be opposite like an incline while this one is clearly going down making it negative

There is a negative correlation in the data set, Option B is correct.

As per the question, it is to be determined which correlation is shown in the scatterplot.

What is a scatter plot?

The association between two numerical variables measured for the same individuals is displayed in a scatterplot. One variable's values are displayed on the horizontal axis, and the other variable's values are displayed on the vertical axis.

Here,
In the scatter, plot the graph of the points shows a decline while moving on the positive x-axis. Thus the negative correlation is plainly going down, starting at the top left and moving down to the bottom right.

Thus, there is a negative correlation in the data set, Option B is correct.

Learn more about scatter plots here:
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Each of 4 tables at a party is set with a bowl of grapes. Each
bowl contains 5/8 of a pound of grapes. How many pounds of
grapes are there altogether? Show your work.

Answers

Answer:

2.5

Step-by-step explanation:

youll have to multiply 4 times 5/8

The length of a rectangle is 1 ft less than 3 times the width. The area is 310 ft^2. Find the dimensions of the rectangle.

Answers

Answer:

Length = 32 ft

Width = 10 1/3 ft

Step-by-step explanation:

A rectangle has a perimeter of 6 feet.
Choose all the possible dimensions of the rectangle.​

Answers

two sides would=2 which would have 2 sides had up to 4, and the other two sides would= 1 which would have those two added up to 2, 4+2=6

PLS HELP ME PLS I'M GOING TO FAIL THIS!!!!!

Answers

Answer:

1. 27

2. 63

3. 135

4. 28

5. First answer choice

Step-by-step explanation:

I can explain any specific problem in the comments if you'd like, but explaining all 5 would take too long. Hope this helps!

Look at this check register. Calculate the current balance.


A check register has a balance of 82 dollars and 92 cents. 78 dollars and 24 cents is debited for a phone bill. 125 dollars is deposited for a pay check. 40 dollars is debited from the A T M. 56 dollars and 50 cents is debited for tennis lessons.


The current balance is $

.

Answers

Answer:

$33.18

Step-by-step explanation:

$33.18 is the answer because...

Step one first we have the money in the cash register of $82.92. Unfortunately she has to pay a phone bill of $78.24 so we subtract 82.92 and 78.24 which leaves the person with $4.68.Step two so she has $4.68 but now she gets an outstanding $125 paycheck. So we add $4.68 and $125 to get $129.68 as her new balance.Now the person's balance is $129.68 it says in the question she debited $40 from the ATM. So we subtract $129.68 and $40 to get $89.68.Step four she also had to pay $56.50 for the persons tennis lessons so we subtract $89.68 and $56.50 to get our final answer of $33.18Hope this helped :)

The current balance is calculated by starting with the initial balance of $82.92 and then subtracting debits and adding credits from various transactions. After all adjustments, the current account balance is $33.18.

To calculate the current balance, we'll start with the first number under Balance and adjust it based on the recorded transactions.

Start with the initial balance: $82.92

Subtract the debit for the phone bill: $82.92 - $78.24 = $4.68

Add the deposit from the paycheck: $4.68 + $125.00 = $129.68

Subtract the ATM debit: $129.68 - $40.00 = $89.68

Finally, subtract the debit for tennis lessons: $89.68 - $56.50 = $33.18

Therefore, the current balance is $33.18.

Learn more about Calculating Balance here:

https://brainly.com/question/34671587

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URGENT!!! Which is a y-intercept of the graphed function?
(-9, 0)
(-3, 0)
(0, -9)
(0, -3)

Answers

The y-intercept is where the graph goes through the y-axis (the vertical line in the center). It goes through at y=-9, so the coordinates would be (0,-9), since it is (x,y).

Answer:

The y-intercept is (0, -9)

Step-by-step explanation:

Which is the angle of elevation from Kelley to the top of the waterfall? ∠7 ∠5 ∠8 ∠6

Answers

Answer:

∠6

Step-by-step explanation:

The angle of elevation is the angle between an horizontal line and the line from the object to the observers eyes. The line from the object is above the horizontal line. The angle of elevation denotes the angle from the horizontal upward.  

The first picture below is where your question emanated .The second picture describes the angle of elevation. The angle of elevation from kelley to the top of the waterfall is ∠6.

What two numbers multiply together to get -42 and add up to be -1?

Answers

Answer:

-7 and 6

Step-by-step explanation:

You can solve this problem by setting up a system of equations. Lets call the first number x, and the second number y. Now:

x*y=-42

x+y=-1

You can subtract y from both sides of the second equation to get x=-y-1, which you can then substitute into the first:

(-y-1)*y=-42

-y^2-y=-42

y^2+y-42=0

Solving the quadratic equation:

(y-6)(y+7)=0

y=-7 or 6

x= 6 or -7

When one of the numbers is -7, the other is 6, and when it is 6, the other is -7. Hope this helps!

Identify the correct formula for the following sequence. 2, -4, -10, -16, -22, ...
A. an = 6n - 8
B. an = -8n + 6
C. an = 8n - 6
D. an = -6n + 8

Answers

Answer:

D

Step-by-step explanation:

The terms in the sequence have a common difference d between consecutive terms, that is

d = - 4 - 2 = - 10 - ( - 4) = - 16 - (- 10) = - 22 - (- 16) = - 6

This indicates the sequence is arithmetic with n th term

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 2 and d = - 6, thus

[tex]a_{n}[/tex] = 2 - 6(n - 1) = 2 - 6n + 6 = - 6n + 8 → D

l What are the 1st 4 terms of the sequence defined by the following equation AN equals 5 × 2 in -1

What operation should you perform first when you evaluate the expression 85+(9−25×5)÷3

Answers

46.33

fdsgsdgsdgsdgdsgsdgsdg

Answer:

Follow the rules of PEMDAS, so start with whats in the ()

Step-by-step explanation:

1. Multiply 25x5

2. Then subtract 9-125=-116

3. The -116÷3

4. Add 85

5. Answer 46.33 or 139/3Hope this helps!!!

5. Investment account 1 starts with a balance of $200 and doubles every year. Investment account 2 starts with $1,000 and increases by $100 each year.
a. How long does it take for each account to double?
b. How long does it take for each account to double again?
c. How does the growth in these two accounts compare? Explain your reasoning.
Help Me PLSSSSSSSSSSSSSSSS!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

a. Account 1: 1 year Account 2: 10 years

b. Account 1: 2 years Account 2: 30 years

c. The first account grows exponentially, while the second one grows at a linear rate. Therefore, over time the first account tends to surpass the second one in value.

Step-by-step explanation:

The first account can be modeled by using a compounded formula with 100% rating, since it doubles every year. The formula is shown below:

M = C*(1 + r)^t

Where M is the final amount, C is the initial amount, r is the interest rate and t is the elapsed time. If r = 1, then it doubles every year, so we have the following expression for the first account:

M = 200*(2)^t

While the second acount grows at a steady rate of $100, therefore it can be modeled by the initial amount added by the growth rate multiplied by the elapsed time as shown below:

M = 1000 + 100*t

a. The first acount take 1 year to double, since it doubles every year.

In order for the second acount to double it needs to reach M = 2000, so we have:

2000 = 1000 + 100*t

100* t = 2000 - 1000

100*t = 1000

t = 10

It will take 10 years to double.

b. The first account will double again in 1 more year, so 2 years total.

The second account will need to reach M = 4000, therefore:

4000 = 1000 + 100*t

100*t = 4000 - 1000

100*t = 3000

t = 30

It'll take 30 years total for the second account to double again.

c. Since the first account grows exponentially it grows at a faster rate in comparison to the second one that grows linearly over time. Therefore over time the first account tends to surpass the second one in value.

In this exercise we will have to use the knowledge of finance to calculate the income time in this way we can say that:

a. [tex]Account 1: 1 year \\Account 2: 10 years[/tex]

b. [tex]Account 1: 2 years\\ Account 2: 30 years[/tex]

c. The first account grows exponentially, while the second one grows at a linear rate.  

Then writing the yield formula as:

[tex]M = C*(1 + r)^t[/tex]

Where:

M is the final amountC is the initial amountr is the interest ratet is the elapsed time

If r = 1, then it doubles every year, so we have the following expression for the first account:

[tex]M = 200*(2)^tM = 1000 + 100*t[/tex]

a. In order for the second acount to double it needs to reach M = 2000, so we have:

[tex]2000 = 1000 + 100*t100* t = 2000 - 1000100*t = 1000t = 10[/tex]

b. The second account will need to reach M = 4000, therefore:

[tex]4000 = 1000 + 100*t100*t = 4000 - 1000100*t = 3000t = 30[/tex]  

c. Since the first record of finances evolve exponentially it become larger at a faster rate distinguished to the second individual that evolve linearly over opportunity. Therefore over opportunity the first fees be apt to outdo something or someone the second individual fashionable advantage.

See more about finances at brainly.com/question/10024737

Four times a number less 6 is 8 more than twice that number. find the number.

Answers

Answer:

Four times a number less 6 is 8 more than twice that number. find the number. Denote that number: a, we have:

a x 4 - 6 = a x 2 + 8

=> a x 2 = 6 + 8 =14

=> a = 14/2 = 7

Hope this helps!

:)

What is the quotient of 5/6÷3/4?

Answers

Answer:

20/18

Step-by-step explanation:

Answer:

1 1/3

Step-by-step explanation:

GIVING BRAINLIEST BRAINLIEST!!!! Easy mathhh

Answers

Truthfully, this is tough to type over a computer but, let me see if I can guide you through doing it.

Method: Starting from the very center of the graph, move according to the coordinates, using (x, y)

- X is your horizontal axis.

- Y is your vertical axis.

Concept of Understanding Negatives and Positives:

A positive X, will mean it goes to the right.

A positive Y, will mean it goes up.

A negative X, will mean it goes to the left.

A negative Y, will mean it goes down.

Apply!

- From the center, "A (-2 , -1)" will translate to "go left two spaces, and go down by one". Plot the point.

- From the center, "B (-3 , -1)" will translate to "go left three spaces, and go down by one". Plot the point.

- From the center, "C (3 , 3)" will translate to "go right three spaces, and go up by thjree". Plot the point.

- From the center, "B (-2 , 3)" will translate to "go left two spaces, and go up by three". Plot the point.

CONNECT THE LINES! :D

Next, let's find the area of that shape!

Area = Base×Height

In this case, 4×1, because the height is 4 boxes, and it's 1 box for it's base.

Answer:

Answer is 4X1, PLEASE GIVE ME BRAINLIEST

Step-by-step explanation:

Here are the numbers on a table that shows student's scores for 10 rounds of a video game.

130,150,120,170,130, 120, 160, 160, 190, 140

What is the median score?
A-125
B-145
C-147
D-150

Answers

Answer:

B-145

Step-by-step explanation:

120-190 is the spread in the middle is 145

Answer:

B- 145

Step-by-step explanation:

hoped this helped!

Somebody please help. Hurry!

Answers

Answer:

A. 30.27

Step-by-step explanation:

because it is 30.27

Answer:

the answer is A.

Step-by-step explanation:

What do both of these functions have in common?
f(x) = 3/2lx-7l -2
0(x) = 1.51n(x - 2) +7
O
A. They have the same horizontal translation
O
B. They have the same vertical shift
O
C. They have the same vertical stretch
O
D. They have the same end behavior

Answers

Answer:

C

Step-by-step explanation:

What is the diameter of a circle with circumference 57.52 m?

Answers

Answer:

18.31 meters

Step-by-step explanation:

Use the circumference formula  C =2πr = dπ

C = 57.52 m = dπ

d = 57.52 m / π = 57.52 / 3.1415926= 18.308 m.

Cindy bought an item from the store. The cashier charged her $22.42 which included the original price of the item plus 7% state sales tax. What was the original price of the item? Your answer must be correct to the penny and must be stated as an amount of money

Answers

Probably around 25.74

What is the perimeter of the given composite figure

Answers

Answer:

The perimeter of the given composite figure is:

106 yd

Step-by-step explanation:

The perimeter is defined as the sum of the sides in a figure, therefore, what you should do in this exercise is to add all the yards of the sides of the compound figure, however, you should notice that there are two sides of which They do not give you the measurement and you must identify it based on the sides that do have it, which would be:

Vertical line measurement = (19 + 4-17) yards Vertical line measurement = 6 yards

In the previous case, the two measures on the other side that are complete are used, which are 19 yards and 4 yards respectively, then the measurement that is on our same side (17 yards) is subtracted and thus we obtain the value of the vertical line that it did not have, now that of the horizontal line:

Horizontal line measurement = (30-12-15) yards Horizontal line measurement = 3 yards

In this case, something similar was done, the total measurement of the base was taken and the measurements of the upper zone were subtracted, with which the measurement of the remaining zone was found.

All the measures are added together:

The perimeter of the figure = 30 yd + 17 yd + 12 yd + 6 yd + 15 yd + 4 yd + 3 yd + 19 yd = 106 yd

Answer:

934

Step-by-step explanation:

Given PQ | | ST


Triangle P Q R. Side P Q is 16 kilometers and side P R is 24 kilometers. Triangle S R T. Side R T is 33 kilometers.


What is the distance of Line S T?

7 km

StartFraction 128 Over 11 EndFraction km

22 km

49.5 km

Answers

The answer is C = 22km

Final answer:

To determine the distance of line ST, we use the fact that triangles PQR and SRT are similar, which allows us to set up a proportion with the given side lengths. Solving this proportion reveals that the length of ST is 22 kilometers.

Explanation:

To find the distance of line ST, we need to recognize that if lines PQ and ST are parallel (PQ | | ST) and we are given the lengths of the sides PQ and PR in triangle PQR and side RT in triangle SRT, we can infer that triangles PQR and SRT are similar by the Angle-Side-Angle (ASA) postulate since they share angle P (or R in triangle SRT) and have proportional corresponding sides.

Using the lengths PQ = 16 kilometers and PR = 24 kilometers from triangle PQR and RT = 33 kilometers from triangle SRT, we can set up a proportion to solve for the unknown length ST.

The proportion based on the similarity of triangles is:
PQ/PR = ST/RT
Substituting the given values, we get:
16/24 = ST/33
Solving for ST, we multiply both sides by 33:
ST = 33 * (16/24) = 22 kilometers.

Therefore, the distance of line ST is 22 kilometers.

If a box of 100 pencils cost $4.75, what should you expect to pay for 225 pencils?

Answers

Answer:

$ 10.69

Step-by-step explanation:

225 is 2.25 times the 100 pencils. ( 225/100) So all you have to do is multiply 2.25 the price ($4.75) and you get 10.6875, money can only go to the tenth place so you round it to $10.69

Hope this helped and pls mark as brainliest!

~Luna

$11.25 because the unit price is 0.05, so you would multiply that by 225 to get the answer, $11.25

Pentagon VWXYZ is shown on the coordinate grid. A student reflected pentagon VWXYZ across the y-axis to create pentagon V'W'X'Y'Z'. Which rule describes this transformation? *

(x, y) --> (-x , y)
(x, y) --> (x , y + 8)
(x, y) --> (-y , x)
(x, y) --> (x , -y)

Answers

Answer: (x, y) —> (-x, y)

Step-by-step explanation:

This is because the translation rule for reflection across the y-axis is (x, y) —> (-x, y)

(x, y) --> (-x , y)

Step-by-step explanation:

When reflecting across the y-axis, you will want to switch the sign of the x-coordinate. If the x-coordinate is positive, you will want to switch it to negative and vice versa.

Examples:

(3,5) --> (-3,5)

(-6,-2) --> (6,-2)

~

If you are going to reflect across the x-axis, you will change the y-coordinate, so it is the opposite of reflecting across the y-axis.

what is -2.25w ≥ 13.5?

Answers

Answer:

w < (line under the sign) -6

Step-by-step explanation:

n...
Select the best answer for the question
13. Which of the following is an example of a proper fraction?
.
O A. 4
O B.76
O c. 4/4
O D.43
eh...

Answers

4/4 is an example of a fraction.
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