Which statement is true of an appropriate sample of a population?

a. a sample must be a group of people who are the target of the survey question.
b. a sample should have different characteristics than the population.
c. a sample must be very small.
d. a sample should include only boys or only girls.

The Correct Answer is A.

Explanation:

The census or the population sample survey is the most credible source of information on population characteristics, literacy and education, Urbanization, language, migration and many other social cultural and demographic data, economic, housing and household amenities, religion and disability.A survey is an audit in which information is systematically collected, but the experimental method is not used that is no active intervention by the investigator.