The time estimates (in weeks) and precedence relationship between activities are shown below.

Activity	Optimistic	Most Likely	Pessimistic	Immediate Predecessors
A	3	4	8	----
B	4	6	8	A
C	1	4	7	A
D	2	3	10	B
E	6	8	10	B, C
F	5	7	12	C
G	2	5	8	D, E, F

What is the critical path? (Type your answer with hyphens between the letters, no spaces)

What is the expected duration of this project, based on the calculated expected time (Te) of the critical path? (weeks, show 1 decimal, e.g., 3.1)

What is the variance of the critical path? (weeks, provide 2 decimals, e.g., 2.12)

What is the probability of completing this project in 19 weeks? (Provide 2 decimals, no % sign, e.g., 2.12 for 2.12%.)