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On a math exam Joel had a score of 90 which was exactly 2 standard...

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On a math exam Joel had a score of 90 which was exactly 2 standard deviations above the mean The standard deviation for the test is 3 What score was 2 standard deviations below the mean b What percent of the scores were at least 81 What score represents the mean a between R1 andd 079

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