Statisticshard · Past Paper
If the mean of observations x1, x2, ..., xn is M, what is the mean of (x1/k), (x2/k), ..., (xn/k)?
AM
BM/k
CMk
DM+k
✓ Correct Answer: B — M/k
If every element in a set is divided by a constant k, the mean of the set is also divided by that same constant k.
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