A	INCLUDE A NETWORK BY NODES
B	WHAT WOULD BE THE AVERAGE DURATION OF THE PROJECT AND ITS VARIANCE?
C	IF THE PROJECT IS DESIRED TO BE COMPLETED IN 70 BUSINESS DAYS WITH A GUARANTEED PROBABILITY OF 95%. WHAT WOULD THE AVERAGE DURATION OF THE PROJECT BE?
Activity	Precedence	Optimistic	More likely	Pessimistic
A	-	4	7	10
B	-	2	4	8
C	A,B	2	5	8
D	C	16	19	28
E	C	6	9	24
F	E	1	7	13
G	C	4	10	28
H	D,F,G	2	5	14
I	G,F	5	8	17
J	H	2	5	8
K	I,J	17	29	45