If xbar represents the mean of n observations x1,x2.....xn then value of  nΣi=1 (xi-xbar) is: (A) –1

If xbar represents the mean of n observations x1,x2.....xn then value of nΣi=1 (xi-xbar) is: (A) –1

#class9 #statisticsandprobability #Ifxbarrepresentsthemeanofnobservationsx1x2xnthenvalueofnsigmaiisequalto1ximinusxbarisAminus1B0C1Dnminus1 If xbar represents the mean of n observations x1,x2.....xn then value of nΣi=1 (xi-xbar) is: (A) –1 (B) 0 (C) 1 (D) n – 1