<prompt> Dispersion of data is measured by -a Coefficient of correlationb Rangec Standard deviationd Coefficient of variatione Normal distribution curveacacbcd  <response>: Measure of dispersion VariationAbsolute: Range, Quartile deviation, Mean deviation, standard deviation.Relative: Co-efficient of range, co-efficient of quartile deviation, coefficient of mean deviation, co-efficient of variation. 