A Business Has Five Customer Service Telephone Lines

question 36

Multiple Choice

A business has five customer service telephone lines. Let x denote the number of lines in use at any given time. Suppose that the probability distribution of x is as follows: Find the standard deviation of x. Round your answer to two decimal places.

• A)2.5
• B)1.33
• C)0.98
• D)1.22
• E)1.25