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For a population of exam scores, a score of X=29 corresponds to z=0.5 and a score of X=20 corresponds to z=-1.0. Find the mean and standard deviation for the population.
Statistics and Probability, Statistics
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If the data are pooled, the 48 "before" scores had an average of 7.48 and a standard deviation of 0.652. Assume that the "before" scores of people who have not seen any pictures has an average of 7.48 and a standard devi ...
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