An activity has an optimistic estimate of
题型:单项选择题
问题:
An activity has an optimistic estimate of 10 days, pessimistic estimate of 16 days, most likely estimate of 13 days. Assuming a normal distribution, what is the probability that the task will be completed within 10~16 days
A.99.99%.
B.99.73 Y0.
C.95.46%.
D.68.26%.