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Compute the corresponding z-scores of the three grades in a report card that you want to interpret in terms of performance. Mathematics (75), English (85),

Compute the corresponding z-scores of the three grades in a report card that you want to interpret in terms of performance. Mathematics (75), English (85), and Science (90). The means are 72, 83, and 88 respectively. The standard deviation are 3, 10, and 15 respectively

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