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const2013 [10]
3 years ago
7

Marcus wants to determine how age and weight are related to exercise preference in his town. He selects a simple random sample o

f 75 overweight individuals from
the 25- to 35-year age group and records their age, weight, and exercise preference (sports, Pilates/yoga, dancing, none). He also selects an independent simple

random sample of 50 normal weight individuals from the 40-to 50-year age group and records the same information. Which is the most important observation about

Marcus's plan?

-He should have selected the two age groups randomly instead of choosing them specifically

-He will be unable to tell whether a difference in exercise preference is related to a difference in age or to a difference in weight

-The plan is well conceived and should serve the intended purpose

-His samples are too small

-He should have used equal sample sizes
Mathematics
1 answer:
mario62 [17]3 years ago
3 0

Answer:

He will be unable to tell whether a difference in exercise preference is related to a difference in age or to a difference in weight

Step-by-step explanation:

age could be a factor to exercise as well as weight so both affect the outcome so he has two samples

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Solve 3(2x-5)-4x+8=-1
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Answer:

6

Step-by-step explanation:

Step 1:

3 ( 2x - 5 ) - 4x + 8 = - 1

Step 2:

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Step 3:

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Step 4:

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Answer:

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Mitchell use one fourth of a carton of 12 eggs to make an omelette how many eggs did she use
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The first 4 terms of a geometric sequence are 2, 6, 18, 54. Part A: Find the common ratio. Remember the common ratio is the numb
ra1l [238]

Answer:

Common ratio is 3

The three terms are 162, 486, 1458

Step-by-step explanation:

Given: The first 4 terms of a sequence are 2,6,18,54

To find:

A. the common ratio

B. the next 3 values in the geometric sequence

Solution:

Geometric sequence is a sequence in which each of the terms is obtained by multiplying the previous term by a fixed number.

A.

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So, the common ratio is 3

B.

The next three values are as follows:

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