Question

if the mean of a set of observations x1 ,x2,........,.....,x10 is 20 .find the mean of x1+4 x2+x3+12,....,....,x10 +40​

Answer 1

Answer:

If the mean of a set of observations X1,X2,.....,.....,X10 IS 20 find the mean of x1+4,x2+8,x3+12,..... ......,x10+40 - 6476542.

66 votes

If the mean of this set is equal to 20, we can write down the below equation,20 = (x1 + x2 +x3 + .... + x10)/10x1 + x2 + x3 + ... x10 = 200Then we ...