Normal distribution to assign grades
A professor would like to utilize the normal distribution to assign grades such that 5% of students receive A's. If the exam average is 62 with a standard deviation of 13, what grade should be the cutoff for an A? (Round your answer.)
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If the probabilities of cold weather (S1), warm weather (S2), and rainy weather (S3) are 0.2, 0.4, and 0.4, respectively what is the EVPI for this situation?
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The manufacturer of silicon wafers used in integrated circuits requires the removal of contaminating particles of a certain size. This process rinses batches of 20 wafers with deionized water. Personnel count the number of contaminating particles.
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