The Logic Behind Samples and Populations Is That

Multiple Choice

The logic behind samples and populations is that

A) measuring the population is usually the desirable approach.
B) the scores in a sample can be used to estimate the scores we would expect to find if we could measure a population.
C) it is much less expensive to measure a sample than to measure an entire population.
D) there is no need to measure an entire population because any sample produces the same results.