Construction Planning and Management
If the expected time of completion of a project is 60 weeks with a standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks respectively will be

97.7 % and 15.9%
2.3% and 84.1%
15.9% and 97.7%
97.7% and 84.1%

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Construction Planning and Management
Assertion A: For a given depth of cut, the output of a power shovel can be increased by decreasing the angle of swing.Reason R: If the angle of swing is decreased, the cycle time will be decreased.

Both A and R is true and R is the correct explanation of A
A is false but R is true
Both A and R is true but R is not the correct explanation of A
A is true but R is false

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