What is the mean deviation of 3, 5, 8, 11, 12 and 21?
-
A.
4.7 -
B.
60 -
C.
3.7 -
D.
10
Correct Answer: Option A
Explanation
Mean (= bar{x} = frac{60}{6} = 10)
mean deviation (= frac{sum|x-bar{x}|}{n} = frac{28}{6})
= 4.7
Mean (= bar{x} = frac{60}{6} = 10)
mean deviation (= frac{sum|x-bar{x}|}{n} = frac{28}{6})
= 4.7