Use the following information for following questions .
The distribution of the number of hours of sleep people get per night is unimodal
and symmetric with a mean of 6 hours and a standard deviation of 1.5 hours.
-Approximately what percent of people sleep between 6 and 7.5 hours per night?
A)16%
B)24%
C)34%
D)68%

Question

Quizplus · Accepted Answer

In a normal distribution, approximately 34% of the data falls between the mean and one standard deviation above the mean. Here, 6 to 7.5 hours is within one standard deviation above the mean (6 + 1.5 = 7.5).

Use the Following Information for Following Questions