Question: The optimistic time for a certain task is 4 days, while its most likely time is 7 days and its pessimistic time is 14 days.

The optimistic time for a certain task is 4 days, while its most likely time is 7 days and its pessimistic time is 14 days. When using the PERT technique, which of the following is closest to the expected time for this task?

a. 14.00 days

b. 7.67 days

c. 2.78 days

d. 7.00 days

e. 8.33 days

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