An activity has an optimistic time estimate of 17 days,a most likely estimate of 23 days,and a pessimistic estimate of 37 days.What is the variance of the activity?
A)3.33
B)6.66
C)9.99
D)11.11

Question

Quizplus · Accepted Answer

The variance of an activity is given by the formula:Variance = (Pessimistic Estimate - Optimistic Estimate)^2 / 6Plugging in the given values, we get:Variance = (37 - 17)^2 / 6 = 20^2 / 6 = 400 / 6 = 66.66Therefore, the variance of the activity is 66.66 days, which is closest to option D) 11.11 days.

An Activity Has an Optimistic Time Estimate of 17 Days,a