The mean for a sample selected randomly from a population is most likely to be lower or higher than the known value of the population mean.

Question

Quizplus · Accepted Answer

The mean of a random sample is likely to be different from the population mean, as it is based on a smaller subset of the population and therefore subject to random variation. However, whether it is higher or lower cannot be determined without further information.

The Mean for a Sample Selected Randomly from a Population