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Vilka [71]
3 years ago
8

A researcher wants to survey people from different age groups to analyze voting patterns. Which type of survey will best accompl

ish this goal?
systematic random sampling
voluntary sampling
convenience sampling
stratified sampling
Mathematics
2 answers:
nordsb [41]3 years ago
6 0

Answer: Stratified sampling


Step-by-step explanation:

Stratified sampling is a random sampling method in which the population is divided into non-coinciding groups are called strata and a sample is picked out by some design within each stratum.

Given: A researcher wants to survey people from different age groups to analyze voting patterns.

Thus he will make different groups according to different ages to analyze voting patterns that are called stratum.

Thus, Stratified sampling best accomplish this goal.


tiny-mole [99]3 years ago
4 0

This is an example of stratified sampling because here the samples are divided into different age groups. A stratified sampling is a better way of sampling as it provides a greater precision of results out of a small sample size. This method is also economic as it operates on less samples.

Hence, stratified sampling is the correct answer.

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Lina20 [59]

Answer: - 6 1/2

Step-by-step explanation:

We should note that:

=-4 - 2 1/2

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For example, let's assume you owe Bob $4 and then you owe Bill $2 1/2. To calculate the total amount owed, you would have $6 1/2.

5 0
3 years ago
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Ray Of Light [21]

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7 0
4 years ago
Please help on this math question!!
katrin2010 [14]

Answer:

x = 49

Step-by-step explanation:

The third side of the largest of the inner triangles:

= \sqrt{(7\sqrt{(33)^{2} }- (33)^{2}

=\sqrt{528} =\sqrt{(16)(33)} =4\sqrt{33}

The side that continues next to 33: x -33

Applying similarity property on right triangles:

\frac{33}{4\sqrt{33} } =\frac{4\sqrt{33} }{x-33}

(33)(x-33)=(4\sqrt{33} )^{2}

33x-1089=528

33x=528+1089

x=\frac{528+1089}{33} =49

Hope this helps

6 0
3 years ago
suppose the population of a certain city has been doubling every 30 years and the population was 48,000 in 1900. what will the p
Brilliant_brown [7]

Answer:

768000

Step-by-step explanation:

From 1900 to 2020 = 120 means that it doubles 4 times ( once every 30 years)

=> 48000 * 2 ^ 4 = 768000

3 0
2 years ago
A square coffee table has an area of 196 square inches.what is the perimeter
andrew11 [14]

Answer:

56 in

Step-by-step explanation:

Square ....so each side is = x

x * x = area = 196

x^2 = 196

x = sqrt (196) = 14 in

perimeter = x  + x + x + x = 56 in

7 0
2 years ago
Read 2 more answers
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