Mathematics, 18.06.2020 18:57 hhomeschool24
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 24 students, and the distribution of total study hours per week is bell-shaped with a mean of 13 hours and a standard deviation of 2.8 hours. Use the Empirical Rule to answer the following questions.
a) 68% of the students spend between hours and hours on Statistics each week.
b) 95% of the students spend between hours and hours on Statistics each week.
c) 99.7% of the students spend between hours and hours on Statistics each week.
Answers: 3
Mathematics, 21.06.2019 17:00
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Mathematics, 21.06.2019 17:00
Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?
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Mathematics, 21.06.2019 17:00
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Mathematics, 21.06.2019 21:30
The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?
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