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maw [93]
3 years ago
9

To ensure that she obtained a sufficiently large number of minority respondents in a study on racial attitudes, a researcher div

ided the people in her population in to four racial groups. She then drew a random sample from each of these groups. What kind of sample is this?
Mathematics
1 answer:
soldi70 [24.7K]3 years ago
4 0

Answer:

It is stratified random sampling.

Step-by-step explanation:

Stratified random sampling is a method of sampling that involves the division of a population into smaller sub-groups known as <em>strata.</em>

The strata are formed based on members' shared attributes or characteristics, in this case their race.

Stratified random sampling is also called <em>proportional random sampling</em> or <em>quota random sampling</em>

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I need help!!!! Evaluate 4/7 + 8/3 in fraction form
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Answer:

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Step-by-step explanation:

<u>Given equation:</u>

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<u>Solve:</u>

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May this help you!!!!!!!!!!!

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4 years ago
Read 2 more answers
Segment AB with endpoints at A(2, 4) and B(2, 18) is partitioned by point P according to the ratio of 3:4. Find the coordinate o
natta225 [31]

Using proportions, it is found that the coordinates of point P are given as follows: (2,10).

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The segment is partitioned by point P according to the ratio of 3:4, hence:

P - A = \frac{3}{7}(B - A)

This proportion is applied for both coordinates, hence, for the x-coordinate:

x - 2 = \frac{3}{7}(2 - 2)

x - 2 = 0

x = 2.

For the y-coordinate:

y - 4 = \frac{3}{7}(18 - 4)

y - 4 = 6

y = 10.

Hence the coordinates are (2,10).

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

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