A basic principle of probability sampling is that a sample will be representative of the population from which it is selected if all members of the population have an equal chance of being selected in the sample. Samples that have this quality are often labeled equal probability of selection method EPSEM) samples. Even carefully selected EPSEM samples are _____ of the populations from which they are drawn.

Question

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A. This is an incorrect answer because basic principle of probability sampling is that a sample will be representative of the population from which it is selected if all members of the population have an equal chance of being selected in the sample. Samples that have this quality are often labeled equal probability of selection method EPSEM) samples. Even carefully selected EPSEM samples are not always perfectly representative of the populations from which they are drawn.
B. The correct answer is "B" because basic principle of probability sampling is that a sample will be representative of the population from which it is selected if all members of the population have an equal chance of being selected in the sample. Samples that have this quality are often labeled equal probability of selection method EPSEM) samples. Even carefully selected EPSEM samples are not always perfectly representative of the populations from which they are drawn.
C. This is an incorrect answer because basic principle of probability sampling is that a sample will be representative of the population from which it is selected if all members of the population have an equal chance of being selected in the sample. Samples that have this quality are often labeled equal probability of selection method EPSEM) samples. Even carefully selected EPSEM samples are not always perfectly representative of the populations from which they are drawn.
D. This is an incorrect answer because basic principle of probability sampling is that a sample will be representative of the population from which it is selected if all members of the population have an equal chance of being selected in the sample. Samples that have this quality are often labeled equal probability of selection method EPSEM) samples. Even carefully selected EPSEM samples are not always perfectly representative of the populations from which they are drawn.

A Basic Principle of Probability Sampling Is That a Sample