If the estimated time of completion of a project is 60 weeks with standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks will be respectively
A. 2.3% and 84.1%
B. 97.7% and 84.1%
C. 97.7% and 15.9%
D. 15.9% and 97.7%
Answer:A
If the estimated time of completion of a project is 60 weeks with standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks will be respectively
A. 2.3% and 84.1% B. 97.7% and 84.1% C. 97.7% and 15.9% D. 15.9% and 97.7%