Statistics And Probability Question 410

Question: The mean deviation from the mean for the set of observations ?1, 0, 4 is

Options:

A) $ \sqrt{\frac{14}{3}} $

B) 2

C) $ \frac{2}{3} $

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

Mean $ =\frac{-1+0+4}{3}=1 $ . Hence M.D. (about mean) $ =\frac{|-1-1|+|0-1|+|4-1|}{3}=2 $ .