Using the following project information, calculate the variance for each of the project activities.

Activity		Optimistic Time Estimate(weeks)		Most Likely Time Estimates (weeks)		Pessimistic Time Estimates (weeks)		Immediate Predecessor(s)
A		2		3		5		none
B		2.5		4		5		A
C		5		7		8		A
D		3		5		7		B,C
E		5		6		14		B,C
F		2		5		8		D
G		4		5		6		E
H		6		6		8		F
I		3		9		11		G
J		2		3		3		H,I

(Round your answers to 2 decimal places, e.g. 1.75.)

Activity	Variance
A
B
C
D
E
F
G
H
I
J