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A project’s critical path is composed of activities A (variance .33), B (variance .67), C (variance .33), and D (variance .17). What is the standard deviation on the critical path?

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Answer:

standard deviation on the critical path is 1.22

Explanation:

Given the four (4) activities below,

Activities A has Variance (.33)

Activities B has Variance (.67)

Activities C has Variance (.33)

Activities D has Variance (.17)

Hence,

Standard Deviation = √sum of variance of activities A,B,C and D

=√.33+.67+.33+.17

SD= √1.5

SD= 1.22

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