What is the mean of the following list: $20$?

Which of the following best describes the $\mathrm{mean}$ in a data set?

Given a normal distribution with mean $\mu$ and standard deviation $\sigma$, what is the mean of the distribution?

What is the mean of the integers from $25$ to $41$ inclusive?

Which of the following are commonly used measures of center for a data set?

Suppose a population consists of the following values: $1$, $3$, $5$, and $7$. What is the mean of this population?

Which of the following is a good point estimator for the population mean?

Suppose the heights (in centimeters) of five students are $150$, $160$, $170$, $180$, and $190$. What is the mean height of these students?

Which of the following best describes the $\mathrm{mean}$ in a data set?