Project Management:

1.a. An activity has an optimistic time estimate of 7 days, a most likely estimate of 12 days, and a pessimistic estimate of 20 days. What is the expected standard deviation of the activity? A) between 2 and 3 days B) between 3 and 4 days C) between 4 and 5 days D) between 5 and 6 days

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1b. What is the float start time for Activity C given the activity times and precedence requirements shown in the table? Show work

Activity	Time	Predecessor
A	5	--
B	8	A
C	4	A
D	5	B, C

A) 1

B) 2

C) 3

D) 4