Question

Q. If ˉx is the arithmetic mean of n observations x1, x2, x3, .......xn, then find the value of (x1-x)+(x2-ˉx)+..............(xn-x).

Answer 1

Answer: 0

Step-by-step explanation:

As x is aritmetic mean...

x = (x1+x2+........xn)/n

=> x1+x2+........xn = x*n

given (x1-x)+(x2-x)+........+(xn-x)

.=> (x1+x2+.....+xn) - (x+x+x+......n times)

=> ( nx)-(nx)

. = 0......

Hope it will help....☺