question_answer

The mean of \[{{X}_{1}},{{X}_{2}},...{{X}_{50}}\]is M, if every xi i = 1, 2 ... 50 is replaced by \[\frac{{{x}_{i}}}{50}\] then the mean is

A)  \[M\]                  

B)         \[M+\frac{1}{50}\]

C)  \[\frac{50}{M}\]                             

D)         \[\frac{M}{50}\]