Question

When the MAD of the data is 0, it means that there is ________ in the data.

• A. no variation
• B. a variation
• C. significance
• D. a relation

Answer 1

The correct option is A no variation

When the MAD of the data is 0, it means that there is no variation in the data.
Example:
For the data set $2,2,2,2,2:$

$\text{Mean}=\frac{2+2+2+2+2}{5}=\frac{10}{5}=2$

$\text{MAD}=\frac{|2-2|+|2-2|+|2-2|+|2-2|+|2-2|}{5}=\frac{0}{5}=0$