Given the data set $4,7,9,10,12$, what is the sample mean?

Given forecast errors of $-1$, $4$, $8$, and $-3$, what is the mean absolute deviation?

Out of $20$ attempts, a basketball player scored $8$ times. What percent of his attempts did he score?

Suppose a population consists of the values $1$, $8$, $5$, and $6$. What is the population mean?

Given forecast errors of $4$, $8$, and $-3$, what is the mean absolute deviation?

The $\mathrm{sample}\mathrm{mean}$ is the best point estimate of the population mean.

Given a sample with a sample mean of $\overline{x}$ and a sample standard deviation of $s$, which of the following best describes the sample mean?

Whenever a data value is less than the $\mathrm{mean}$, _______.

Which of the following best completes the sentence: The median is the $\mathrm{middle} \mathrm{value}$ of the data in a sorted array?