MATHEMATICS ASSIGNMENT Statistic Problem
A statistics instructor designed an exam so that the grades would be roughly normally distributed with meanμ=75and standard deviationσ=10. Unfortunately, a fire alarm with ten minutes to go in the exam made it difficult for some students to finish. When the instructor graded the exams, he found they were roughly normally distributed, but the mean grade was 62 and the standard deviation was 18. To
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09 Oct 2017