The standard deviation of a set of scores is 20 what will, Ask an Expert

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The standard deviation of a set of scores is 20. What will the standard deviation become if

(a) 15 points are added to each score?

(b) Each score is divided by 5?

(d) Each score is multiplied by 5,and 20 is then added to each resulting value?

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Statistics and Probability, Statistics

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