What happens to the mean of a set of scores ifa a constant, Ask an Expert

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What happens to the mean of a set of scores if
a. A constant a is added to each score in the set?

b. A constant a is subtracted from each score in the set?

c. Each score is multiplied by a constant a?

d. Each score is divided by a constant a? Illustrate each of these with a numerical example.

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