JAMB - Economics (2008 - No. 4)
If the standard deviation of a given data is 8.2, find its variance
4.1
67.2
82.0
91.8
คำอธิบาย
The variance is the square root of the standard deviation. Hence we have;
8.2 x 8.2 = 67.24
The variance is the square root of the standard deviation. Hence we have;
8.2 x 8.2 = 67.24