The amount of time a student taking statistics spends on studying for a test is normally distributed. If the average time spent studying is 10 hours and the standard deviation is 4
hours,
a. What is the probability that a student will spend more than 13 hours studying?
b. What is the probability that a student will spend between 9 to 11 hours studying?
c. What is the probability that a student will spend less than 8 hours studying?
a.
b.
c.
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