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Suppose that the scores on a mathem atics aptitude test are normally distributed. If the test results have a mean score of 84 points and a standard deviation of 10.2 points, w hat is the probability that a student from this population scored 89 points or higher on this particular test? (Hint: first compute the Z score.)

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X-84 5 2 10、2. P(27e-44) 0-3121ぼ

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