4. If the sum of the variance of the activities on the critical path is equal to 25 weeks and the expected project completion time is 65 weeks. What is the probability that the project will take less than 70 weeks for completion? a. 2.5% b. 8% c. 16% d. 84% e. 99.7% 5. Using the same data as in Q. 4, what is the probability that the project will take more than 75 weeks? I a. 2.5% b. 16% c. 34% d. 50% e. 97.5%

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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4. If the sum of the variance of the activities on the critical path is equal to 25 weeks and the
expected project completion time is 65 weeks. What is the probability that the project will take
less than 70 weeks for completion?
a. 2.5%
b. 8%
c. 16%
d. 84%
e. 99.7%
5. Using the same data as in Q. 4, what is the probability that the project will take more than 75
weeks?
I
a. 2.5%
b. 16%
c. 34%
d. 50%
e. 97.5%
Transcribed Image Text:4. If the sum of the variance of the activities on the critical path is equal to 25 weeks and the expected project completion time is 65 weeks. What is the probability that the project will take less than 70 weeks for completion? a. 2.5% b. 8% c. 16% d. 84% e. 99.7% 5. Using the same data as in Q. 4, what is the probability that the project will take more than 75 weeks? I a. 2.5% b. 16% c. 34% d. 50% e. 97.5%
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