Question: 4. If normal college students study on average 20 hours per week, with a standard deviation of 2.5 hours: a. What is the probability

4. If normal college students study on average 20 hours per week,

4. If normal college students study on average 20 hours per week, with a standard deviation of 2.5 hours: a. What is the probability that a student, taken at random, studies between 18 and 20 hours. =.288 -1E99 LL 1E99 b. What is the probability that a student will study less than 25 hours? =.977 -1E99 1E99

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