What is the approximate number of students

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The amount of time a student spends on homework each evening is approximately normally distributed. 18% of the 900 students spend at least 25 minutes doing homework and Erin, who spends 38 minutes has a standardized score of 1.932. What is the mean of the distribution? What is the standard deviation of the distribution? What is the approximate number of students who spend less than 15 minutes on homework?

Reference no: EM132377649

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