Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Optimistic time (O) : the minimum possible time required to accomplish a task, assuming everything proceeds better than is normally expected.

Pessimistic time (P) : the maximum possible time required to accomplish a task, assuming everything goes wrong (but excluding major catastrophes).

Most likely time (M) : the best estimate of the time required to accomplish a task, assuming everything proceeds as normal.

Expected time (TE) : the best estimate of the time required to accomplish a task, accounting for the fact that things don't always proceed as normal (the implication being that the expected time is the average time the task would require if the task were repeated on a number of occasions over an extended period of time).

So Option A is right.

Letter (B) corresponds to Standard Deviation of an Activity.

Squaring such will yield to Variance of an Activity, in this regard the answer should be Letter (C).

Yes, the answer is C. Because B is the standard deviation. And we know Standard deviation equals to the square root of the variance.

The right answer is C.

Option B is for the standard deviation.
Option A is for the expected time.

The Right answer is C.

Option B is right for Standard deviation.

A is expected time.

B is standard deviation.

C is variance.

"B" is standard deviation.

"C" is variance.

I think the Correct answer is C.

I think the correct Answer is C.

I think option C is the answer.