A survey sample is considered to be representative of a particular population if ________.
A)everyone in the population has an equal chance of participating in the survey
B)the sample is of sufficient size
C)if "K" is greater than 250
D)the survey instrument in nonbiased
E)A and B

Question

Quizplus · Accepted Answer

To ensure a representative sample, everyone in the population must have an equal chance of participating in the survey (A) and the sample must be of sufficient size (B). Therefore, options A and B are both necessary but not sufficient. Option C, "if 'K' is greater than 250," is not a valid criterion for representativeness. Option D, "the survey instrument in nonbiased," is also necessary but not sufficient. Therefore, the best choice is E, as it includes both necessary and sufficient criteria for representativeness.

A Survey Sample Is Considered to Be Representative of a Particular