STA 301 Statistics and probability SOLVED GDB ENJOY
Posted: Thu Jan 03, 2013 12:20 pm
“It has been said “less the variability exist, the more an average is representative of a set of data”. Comment on the meaning of statement”
if data has less variability it means data will not have extreme values, so average will not be affacted,
it will represent the data more affective.
The extent to which data points in a statistical distribution or data set diverge from the average or mean value.
Variability also refers to the extent to which these data points differ from each other. There are four commonly used measures of variability: range, mean, variance and standard deviation.