JAMB - Economics (2004 - No. 37)
A large standard deviation is an indication of
the size of the sample
a wide spread around the mean
a wide difference between the mean and the mode
the difference between the highest and the lowest values
คำอธิบาย
Standard deviation is a number used to tell how measurements for a group are spread out from the average (mean), or expected value.
A high standard deviation indicates that the data points are spread out over a large range of values.