The police department of a city with a population of 250000 wants to know how many residents wear their seatbelts regularly. which sample size would make the study most reliable? a. 2500 b. 250 c. 5 d. 25

Option A is correct.

Step-by-step explanation:

Given:

Population of the city is 250,000

Police department wants to know how many residents wear their seat belts regularly.

To find: Sample size for the study which make it most reliable.

Most reliable study means study which produce most accurate result.

We know that a study can produce most accurate result only when the sample size if as possible large.

So, among given options Only Possible Sample Size is 2500

Therefore, Option A is correct.

hi,

3. 12.15, you are correct.

4.2.01, your first digit is correct,

hope this !

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step-by-step explanation: