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Zolol [24]
3 years ago
11

Single adults: According to a Pew Research Center analysis of census data, in 2012, 20% of American adults ages 25 and older had

never been married. Suppose that we select 3 random samples of 500 adults from this population. Which of the following is most likely to occur with the three samples?
A. The number that had never been married will equal 20% in each of the three samples.B. The number that had never been married will vary in each sample due to the random selection of adults.C. The average for the three samples of the number of adults that had never been married will equal 20%.D. The number of adults that had never been married will increase for each sample because the number is generally increasing over time.
Mathematics
1 answer:
dmitriy555 [2]3 years ago
7 0

Answer:

Option B

Step-by-step explanation:

The number that had never been married will vary in each sample due to the random selection of adults.

This number will vary in each sample to the random selection process but they might or might not be as close as possible to one another after sampling.

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please help me answer these 3 questions correctly . u will get 30 pints if you do and the brainlest. please do not answer if you
Marianna [84]

Answer:

6a) B

6b) C

6c) A

7 0
3 years ago
Each container will be made of a material that costs $0.0015 per square inch. Explain how to determine the coat of each containe
aksik [14]

Answer:

Find total surface area. Multiply material unit cost by the total surface area.

Step-by-step explanation:

To find the cost of a container, you must first find the total surface area of the container. Then since you are given the unit cost for the material, you multiply the total surface are by the unit cost ($0.0015/in.²).

3 0
2 years ago
Describe how you would factor x^2 - 10x + 24. Be specific.
balu736 [363]

Answer:

(x-6) (x-4)

Step-by-step explanation:

x^2 - 10x + 24

What two number multiply to 24 and add to -10

-6*-4 = 24

-6+-4 = -10

(x-6) (x-4)

3 0
3 years ago
Read 2 more answers
Mathematics challenge
kari74 [83]

Get the equation of the line containing PQ using the point-slope formula:

<em>y</em> - (-2) = 3/2 (<em>x</em> - (-6))

Solve for <em>y</em> to get it in slope-intercept form:

<em>y</em> = 3/2 <em>x</em> + 7

so the <em>y</em>-intercept is (0, 7).

The line containing QR is then

<em>y</em> - 7 = -3/4 (<em>x</em> - 0)

or

<em>y</em> = -3/4 <em>x</em> + 7

The point R is on the <em>x</em>-axis, so its <em>y</em>-coordinate is 0. Plug in <em>y</em> = 0 and solve for <em>x</em> to get the other coordinate:

0 = -3/4 <em>x</em> + 7

3/4 <em>x</em> = 7

<em>x</em> = 4/3×7 = 28/3

So the point R has coordinates (28/3, 0).

6 0
3 years ago
Is the ordered pair left parenthesis 4 comma negative 1 right parenthesis(4,−1) a solution of the following system of​ equations
blondinia [14]

Answer:

No

Step-by-step explanation:

(x,y)=(4,-1)

73x+5y=7

73*4+5*(-1)=287

287\neq 7

____________________________

175x−3y=17

175*4-3*(-1)=703

17\neq 703

7 0
3 years ago
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