Question

if you read that in a particular research study $mu = -36$, what should you assume to be true?
select one:
○ a. the variance = 6
○ b. everyone in the population was measured.
○ c. the standard deviation =6
○ d. the median = 6
○ e. there must be a mistake, since $mu$ can never = -36

Explanation:

The symbol $\mu$ represents the population mean. A population mean can be a negative value, so option e is incorrect. The value of $\mu$ does not directly determine variance, standard deviation, or median, so options a, c, d are incorrect. By definition, $\mu$ is calculated only when all members of the population are measured.

Answer:

b. Everyone in the population was measured.