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PSYC 2301-after 3 points have been added to every score

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January 6th, 2018

a. after 3 points have been added to every score in a sample, the mean is found to b M=83 and the standard deviation is s=8. What were the values for the mean and standard deviation for the original sample.b. after every score is a sample has been multiplied by 4 the mean is found to be M=48 and the standard deviation is s=12. What were the values for the mean and standard deviation for the original sample?

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