Question: Refer to the data given in Exercise 4. Let the random variable x represent the number of fired employees (among 5) who were let go

Refer to the data given in Exercise 4. Let the random variable x represent the number of fired employees (among 5) who were let go because of an inability to get along with others.
a. Find the mean value of x.
b. Find the standard deviation of the random variable x.
c. Is it unusual to have 4 employees (among 5) fired because of an inability to get along with others? Why or why not?

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