The probability that the members selected at random is from the shaded area of the graph is ____(round to four decimal places as needed)


We can do the following steps to solve the exercise.
Step 1: We standardize the variable x. For this, we use the below formula.
[tex]\begin{gathered} z=\frac{x-\mu}{\sigma} \\ \text{ Where} \\ z\text{ is the } \end{gathered}[/tex]