Gym Visits
Let X Represent the Number of Times a Student

Essay

Gym Visits
Let X represent the number of times a student visits a gym in a one month period.Assume that the probability distribution of X is as follows:
$$\begin{array} { | c | c c c c | } \hline \boldsymbol { x } & 0 & 1 & 2 & 3 \\\hline \boldsymbol { p } ( \boldsymbol { x } ) & 0.05 & 0.25 & 0.50 & 0.20 \\\hline\end{array}$$
-{Gym Visits Narrative} Find the mean $\mu$ and the standard deviation $\sigma$ of this distribution.