The mean of a data set is 5 and the standard deviation is 1.3. Every number in the set is multiplied by a, then c2 is added to all numbers. The mean of the new data set is 3 and the standard deviation is 2.6.
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Step-by-step explanation:
if we add Or subtract a constant from every value in the given set the Standard deviation remains same i.e doesn't change but if we multiply or devide by a constant then the standard deviation will be multiplied and devided by the same constant
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