The standard deviation of the critical path is

Home » Industrial Engineering » Industrial Engineering Miscellaneous » Question

The standard deviation of the critical path is

1. 0.33
2. 0.55
3. 0.88
4. 1.66

Correct Option: C

Variance =		t_p − t_O		²
		6

Total variance =		1		²	+		2		²	+		1		²	+		1		²
		3					3					3					3

=	7
	9

Standard deviation = √variance
⇒ √7/9 = 0.88