To find the average income of an adult in the United States, 250 workers in Tennessee are questioned.
No; the sample is not selected from the population to be studied.
No; the sample is not random.
Yes; the sample is selected at random from the population to be studied.

No; the sample is not selected from the population to be studied.

Option A.

Explanation:

In statistics and quantitative research philosophy, a sample is a lot of people or articles gathered or chose from a factual populace by a characterized method. The components of an example are known as test focuses, inspecting units or perceptions.

In the sample that has been taken above in this question is not the appropriate sample to solve the purpose of the average. Because the purpose is to solve for the population of the whole country but sample is not taken from the whole country.

10cm

step-by-step explanation:

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