SOLUTION: The hours a college freshman spend studying each week is usually distributed with a mean of 8 hours and a standard deviation of 5.5 hours. Determine the % of students who spend bet

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Question 1041574: The hours a college freshman spend studying each week is usually distributed with a mean of 8 hours and a standard deviation of 5.5 hours. Determine the % of students who spend between 2.5 and 19 hours studying each week?
A.) 34%
B.) 68%
C.) 47.5%
D.) 81.5%
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
D.) 81.5%.
Hint: Use the empirical rule.