For a 4-units class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on students, and the distribution of total study hours per week is bell-shaped with a mean of 13 hours and a standard deviation of 2 hours. Use the Empirical Rule to answer the following questions. a) 95% of the students have study hours that are between c) What percentage of the students have study hours that are below 15? and %

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For a 4-units class like Statistics, students should spend average of 12 hours studying for the class. A survey
was done on students, and the distribution of total study hours per week is bell-shaped with a mean of 13
hours and a standard deviation of 2 hours.
Use the Empirical Rule to answer the following questions.
a) 95% of the students have study hours that are between
c) What percentage of the students have study hours that are below 15?
and
%
Transcribed Image Text:For a 4-units class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on students, and the distribution of total study hours per week is bell-shaped with a mean of 13 hours and a standard deviation of 2 hours. Use the Empirical Rule to answer the following questions. a) 95% of the students have study hours that are between c) What percentage of the students have study hours that are below 15? and %
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