RESEARCH METHODOLOGY

Detailed explanation-1: -Range, interquartile range, and standard deviation are the three commonly used measures of dispersion.

Detailed explanation-2: -Standard Deviation is a measure of how much the data is dispersed from its mean. A high standard deviation implies that the data values are more spread out from the mean. Standard Deviation is often denoted by the symbol SD or the Greek symbol or the Latin letter ‘s’.

Detailed explanation-3: -There are five most commonly used measures of dispersion. These are range, variance, standard deviation, mean deviation, and quartile deviation.

Detailed explanation-4: -Mean deviation is an absolute measure of dispersion.