Mathematics, 26.09.2021 02:00 XxpinkgothicxX

For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 21 students, and the distribution of total study hours per week is bell-shaped with a mean of 12 hours and a standard deviation of 2.6 hours.

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For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class...