Comparing a census of a large population to a sample drawn from it, we expect that the:
A)sample is usually a more practical method of obtaining the desired information.
B)accuracy of the observations in the census is surely higher than in the sample.
C)sample must be a large fraction of the population to be accurate.

Question

Quizplus · Accepted Answer

A census of a large population is usually not practical due to time, cost, and logistic constraints. Therefore, a sample is a more practical method of obtaining the desired information. While the accuracy of the observations in the sample may be lower than the census, the sample is still reliable and can provide an estimate of the population parameters if properly designed and conducted. The size of the sample needed for accuracy depends on several factors, including the size and variability of the population, the level of precision desired, and the sampling method used. Therefore, option C is not necessarily true in all cases.

Comparing a Census of a Large Population to a Sample