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In this problem, we explore the effect on the standard deviation of multiplying each data value...

In this problem, we explore the effect on the standard deviation of multiplying each data value in a data set by the same constant. Consider the data set 7, 12, 13, 8, 17.

(a) Use the defining formula, the computation formula, or a calculator to compute s. (Round your answer to one decimal place.)
s =  

(b) Multiply each data value by 3 to obtain the new data set 21, 36, 39, 24, 51. Compute s. (Round your answer to one decimal place.)
s =  

Math   Statistics-And-Probability   
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