A statistics instructor gave a 10-point quiz in which the mean was 7.72 with a standard deviation
Question:
A statistics instructor gave a 10-point quiz in which the mean was 7.72 with a standard deviation of 2.45. Suppose the instructor, being in a generous mood, adjusts all the scores by adding a point to each one. What are the values of the mean and standard deviation of the adjusted scores?
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If one is added to each score then the new mean will be the old mean plus 1 new mea...View the full answer
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Related Book For 
Introduction To Statistical Investigations
ISBN: 9781119683452
2nd Edition
Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy
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