Activity	Preceding Activities	Completion Times (to, tm, tp)
A	-	5, 6, 7
B	-	4, 5, 6
C	B	3, 4, 5
D	C	10, 12, 14
E	A, D	5, 6, 7
F	C, E	3, 10, 11
G	E	4, 5, 6
H	G, F	5, 7, 9

1. Find the slack time (delay time) of each of the activities, the critical and the non-critical activities.
2. Find the probability of completing the project in 45 weeks.