Choose the Statement That Best Describes What Is Meant When

Multiple Choice

Choose the statement that best describes what is meant when we say that the sample mean is unbiased when estimating the population mean.

A) The sample mean will always equal the population mean.
B) On average, the sample mean is the same as the population mean.
C) The standard deviation of the sampling distribution (also called the standard error) and the population standard deviation are equal.
D) We cannot say that the sample mean is unbiased.