For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 29 students, and the distribution of total study hours per week is bell-shaped with a mean of 12 hours and a standard deviation of 2.9 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between 9.6 x hours and 16.4 x hours on Statistics each week. b) 95% of the students spend between 6.2 v hours and 19.8 x hours on Statistics each week. c) 99.7% of the students spend between 2.8 x hours and 23.2 x hours on Statistics each week. Submit Question

A First Course in Probability (10th Edition)
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Use the empirical rule to answer the following questions 
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey
was done on 29 students, and the distribution of total study hours per week is bell-shaped with a mean of
12 hours and a standard deviation of 2.9 hours.
Use the Empirical Rule to answer the following questions.
a) 68% of the students spend between 9.6
x hours and 16.4
X hours on Statistics each week.
b) 95% of the students spend between 6.2
V hours and 19.8
x hours on Statistics each week.
c) 99.7% of the students spend between 2.8
X hours and 23.2
x hours on Statistics each week.
Submit Question
144
Transcribed Image Text:For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 29 students, and the distribution of total study hours per week is bell-shaped with a mean of 12 hours and a standard deviation of 2.9 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between 9.6 x hours and 16.4 X hours on Statistics each week. b) 95% of the students spend between 6.2 V hours and 19.8 x hours on Statistics each week. c) 99.7% of the students spend between 2.8 X hours and 23.2 x hours on Statistics each week. Submit Question 144
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