Question

hy
help me in q 10

no copy and spams​

Answer 1

X= x1 + x2 +.... xn )/ n

x1 + x2.... xn = X.n


Mean of ax1, ax2,....axn , x1/a, ....xn/a

= a( x1 +.....xn) +1/a . (x1+ x2....xn))/ 2n


= x1+x2....xn )( a +1/a))/ 2n

= X( a+ 1/a)/ 2n