he number of hours that college students sleep on a week night is approximated by a normal curve with a mean of 7 hours and a standard deviation of 1.7 hours. Answer the question below using a z table:
On a week night, what percentage of students sleep between 5 and 10 hours? (round to whole number)

The number of hours that college students sleep on a week night is approximated by a normal curve with a mean of 7 hours and a standard deviation of 1.7 hours. Answer the question below using a z table:
On a week night, what percentage of students sleep between 5 and 10 hours? (round to whole number)

About 80%

About 40%

About 84%

About 95%