The definition of the range has been given as the difference between the largest and the smallest value of the distribution. itThis, in my perception, tells us the rangediscrepancy between the smallest and largest value and does not measure the dispersion from the central value.
So, my question is how does that help us in finding the dispersion of the observation from the central value of the same? or in In other words, why do we consider range as a measure of dispersion??