Question: The times per week a student uses a lab computer are normallydistributed, with a mean of 5.9 hours and a standard deviation of 1.3 hours.

The times per week a student uses a lab computer are normallydistributed, with a mean of 5.9 hours and a standard deviation of 1.3 hours. A student is randomly selected. Find the following probabilities.

(a) Find the probability that the student uses a lab computer less than 3 hours per week. is ____

(b) Find the probability that the student uses a lab computer between 5 and 7 hours per week. is ______

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