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Mathematics, 06.01.2021 18:00 morgan4411
The waiting times on hold for a call to a customer service department are observed to have the following probability distribution:
Number of calls, x Waiting time, minutes, f(x)
0 0
2 3
4 10
6 15
8 10
10 6
The expected value of the waiting time for a random call is most nearly:
a. 7.3 minutes
b. 9.2 minutes
c. 11.5 minutes
d. 15.0 minutes
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Answers: 1
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