Mathematics · important
Effect of origin and scale on mean for JEE
Calculation of standard deviation, variance and mean deviation for grouped and ungrouped data
Formula
If \(y=\frac{x-a}{h}\), then \(\bar{y}=\frac{\bar{x}-a}{h}\); equivalently, if \(y=ax+b\), then \(\bar{y}=a\bar{x}+b\).
Variables: \(a,b,h\): constants with \(h\ne 0\).
Data transformation and coding method.