A project has five activities with the durations (days) listed below:

Activity	Precedes	Expected Duration	Variance
Start	A, B	-	-
A	C	39	0.2
B	E	17	0.25
C	D	24	0.26
D	End	38	0.54
E	End	27	0.75

What is the probability that the project will be completed within 105 days?

a.

1

b.

0.18

c.

0.25

d.

0

e.

0.82