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If an activity has its optimistic, most likely and pessimistic times as 2, 3 and 7 respectively, then its expected time and variance are respectively | |
A. | 3.5 and 5/6 [Wrong Answer] |
B. | 5 and 25/36 [Wrong Answer] |
C. | 3.5 and 25/36 [Correct Answer] |
D. | 4 and 5/6 [Wrong Answer] |