Mathematics, 18.01.2021 01:30 Ruijinzhang7686
A small start up tech company has 4 customer service telephone lines. Letdenote the number of phone lines in use at any given time. Suppose that the probability distribution of is as follows: (10 points)
0
0.10
1
0.16
2
a
3
0.31
4
0.22
a.) Determine the value of if the data above represent a discrete probability distribution.
b.) Calculate and interpret the expected value of .
c.) Calculate the standard deviation of .
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