An activity has an optimistic time estimate of 15 days,a most likely estimate of 24 days,and a pessimistic estimate of 40 days.What is the expected duration of the activity?
A)less than 27 days but greater than or equal to 26 days
B)less than 26 days but greater than or equal to 25 days
C)less than 25 days but greater than or equal to 24 days
D)less than 24 days

Question

Quizplus · Accepted Answer

The expected duration can be calculated using the formula: 
(expected duration) = (optimistic time + 4x most likely time + pessimistic time) / 6 
= (15 + 4x 24 + 40) / 6 
= 23.5

Therefore, the expected duration is less than 24 days but greater than or equal to 23 days, which corresponds to choice B.

An Activity Has an Optimistic Time Estimate of 15 Days,a