2. Consider the network described in the table below. Times are given in weeks (keep 2 decimal places).

Activity	Immediate Predecessor(s)	Pessimistic b	Most Likely m	Optimistic a	Expected Activity Time	Activity Variance
J	--	15	10	8	10.5	1.36
K	--	9	8	7	8	0.11
L	J	10	6	5	6.5	0.69
M	K,L	3	3	3	3	0
N	M	9	5	1	5	1.78
O	L,N	11	8	5	8	1

1. Draw the network diagram.

2. What is the critical path? What is the expected duration of the critical path?

3. Calculate the probability that the project will be completed in more than 35 weeks.