If 10 is the mean of the data 2 ,3 ,5 ,18 ,17 ,15 ,13 ,x ,9 and 7 , then the mean deviation of this data about its mean is

Question

Accepted Answer

Correct answer: B. (b) x=10 2+3+5+18+17+15+13+x+9+710=10 or x+89=100 or x=11 Deviation from mean (x_i-x), we get 8 ,7 ,5 ,8 ,7 ,5 ,3 ,1 ,1 ,3 Hence, mean deviation = (x_i-x)n= 4810=4.8

$If 10 is the mean of the data 2, 3, 5, 18, 17, 15, 13, x, 9 and 7 , then the mean deviation of this data about its mean is$

Solution

More Statistics PYQs