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The scores on a psychology exam were normally distributed with a mean of 55 and a standard deviation of 9. What is the standa

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Answer #1

Here hiven that Mean = u=55 gid. 9 = 6 = - 4 (30 X=41) score enam so we know that a score formula 2= X-M 6 at 41-55 9 => 2 =

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