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A normal distribution of scores has a standard deviation of 10 and a mean of...

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Basic Math

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A normal distribution of scores has a standard deviation of 10 and a mean of O. Find the z-scores corresponding to each of the following values:a) A score that is 20 points above the mean.b) A score that is 10 points below the mean.c) A score that is 15 points above the meand) A score that is 30 points below the mean.

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