JAMB - Mathematics (2007 - No. 7)
What is the mean deviation of 3, 5, 8, 11, 12 and 21?
4.7
60
3.7
10
Paskaidrojums
mean deviation \(= \frac{\sum|x-\bar{x}|}{n} = \frac{28}{6}\)
= 4.7
mean deviation \(= \frac{\sum|x-\bar{x}|}{n} = \frac{28}{6}\)
= 4.7