Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 5 (Q.No. 36)
36.
The optimistic, most likely and pessimistic time estimates of an activity are 5, 10 and 21 days respectively. What are the expected time and standard deviation respectively ?
Discussion:
2 comments Page 1 of 1.
Pops said:
8 years ago
t = (5 + 10 * 4 + 21)/6 = 11,
sd = (21-5)/6 = 2.67.
sd = (21-5)/6 = 2.67.
Chhaya said:
8 years ago
Thanks @Pops.
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