Question

Moments english

if the sum of deviation of a set n values X1, X2, X3,.......................Xn measured from 50 and 46 and -10 and 70 respectively,then the mean is

if the sum of deviation of a set n values X1, X2, X3,.......................Xn measured from 50 and 46 and -10 and 70 respectively,then the mean is

if the sum of deviation of a set n values X1, X2, X3,.......................Xn measured from 50 and 46 and -10 and 70 respectively,then the mean is

Prove that P(E/F) = (E) if E and F are two independent events

f(x)=e^sinx cosx