Question

what symbol is used for population mean? μ² μ σ² x̄

Explanation:

In statistics, the symbol $\mu$ is used to represent the population mean. $\mu^{2}$ is the square of the population mean, $\sigma^{2}$ is the population variance, $\bar{x}$ is the sample - mean, and $\sigma$ is the population standard deviation.

Answer:

$\mu$