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Suppose that in an examination, the cut off scores for passing is 75 for 200 people. If the mean of the test is 84 with

Suppose that in an examination, the cut off scores for passing is 75 for 200 people. If the mean of the test is 84 with the standard deviation of 5 and scores are normally distributed. A) what proportion of people passed the test? B) How many have a scores between 80 and 86?

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