Question

The mean deviation about the mean for the values $18,20,12,14,19,22,26,16,19,24$ is

• A. $3.1$
• B. $3.4$
• C. $3.2$
• D. $3.3$

Answer 1

Answer: (D)

Here, $=(n=10)=$ total number of observations. Mean deviation $=\frac{\Sigma |x_i-\bar{x}|}{n}=\left(\frac{33}{10}\right)=3.3$