2. For project y that is given in table 2, we have the activities, immediate precedence,

optimistic time, most likely time and pessimistic time. For the given condition:

a) Develop the network diagram

b) Find the critical path

c) Find the expected time

d) Find the probability of completing the project within 35 and 45 days

Table 2 different activities for a project and optimistic time, most likely time and pessimistic

time of the activity

Activities	IP	To	Tm	Tp
A		5	7	12
B		6	8	11
C		8	10	14
D	A	7	9	12
E	B	8	10	12
F	C	7	8	13
G	D	6	8	11
H	D	4	7	12
I	F	4	6	9
J	H,E	8	13	19
K	G	11	14	17
L	I	13	16	22