The below transformation is applied to a data set.Y = 2X + 3, where X is the old data and Y is the new data.If the variance of the first data set is 7 then what is the variance of the new data set.Select one:24 28 14 7 None of the above
Added by Deadshot Z.
Step 1
In this case, the data is multiplied by 2 (scale factor). The rule is that if a data set is multiplied by a factor of 'a', then the variance is multiplied by a^2. So, if the variance of the original data set (X) is 7, then the variance of the new data set (Y) Show more…
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