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According to the American Freshman, the number of hours that college freshmen spend studying each week...

According to the American Freshman, the number of hours that college freshmen spend studying each week is normally distributed with a mean of 7 hours and a standard deviation of 5.3 hours. Use this data to answer the following:

a. Construct a 68-95-99.7 bell curve:

b. Find the hours studied 3 standard deviations above the mean: __________

c. Find the hours studied 1 standard deviations below the mean: __________

d. Find the percentage of the region with hours studied between 7 and 12.3 hours: __________

  

Math   Statistics-And-Probability   
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