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		3		6		15		B,C
F		2		5		8		D
G		4		5		6		E
H		6		6		8		F
I		5		8		11		G
J		2		3		3		H,I

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

Activity	Variance
A	enter a variance rounded to 2 decimal places
B	enter a variance rounded to 2 decimal places
C	enter a variance rounded to 2 decimal places
D	enter a variance rounded to 2 decimal places
E	enter a variance rounded to 2 decimal places
F	enter a variance rounded to 2 decimal places
G	enter a variance rounded to 2 decimal places
H	enter a variance rounded to 2 decimal places
I	enter a variance rounded to 2 decimal places
J	enter a variance rounded to 2 decimal places