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A set of exam scores are reported as X-values and z-scores. On this exam a score of X = 75 corresponds to a z-score of
A set of exam scores are reported as X-values and z-scores. On this exam a score of X = 75 corresponds to a z-score of z = +1.00, and X = 60 corresponds to a z-score of z = -0.50. What are the values for the mean and standard deviation for this exam?
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