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The sample variance of n measurements x1,,xn can be computed as either n1i=1n(xix)2wherex=ni=1nxi or n1i=1nxi2(i=1nxi)2. Find and compare the number of divisions, multiplications, and additions/
The sample variance of n measurements x1,,xn can be computed as either n1i=1n(xix)2wherex=ni=1nxi or n1i=1nxi2(i=1nxi)2. Find and compare the number of divisions, multiplications, and additions/ subtractions (additions and subtractions are usually bunched together) that are required for computing the variance according to each of these formulas
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