# Normal Distribution Probabilities

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Access time to a supercomputer mainframe is normally distributed with an average(mean) of 92 minutes a day with standard deviation of 11 minutes. Find the probability that on a certain day, the access time is:

a) Less than 60 minutes

b) More than 100 minutes

c) Between 70 and 90 minutes

d) Between 1 and 2 hours

https://brainmass.com/statistics/probability/normal-distribution-probabilities-20951

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