Question

The time required is known to complete a project is known to be normally distributed with a mean of 44 weeks and standard deviations of 8 weeks
a) what is the probability that the project is finished in 40 weeks or fewer?
b) what is the probability that the project is finished in 52 weeks or fewer?
c) there is an 95 percentage chance that the project will be finished in fewer than how many weeks?

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