(Answered) what are measures that capture differences within a variable called?what are measures that capture…

➤ Why do we use variance and standard deviation instead of just the mean?
The mean summarizes central tendency but does not show how values vary. Variance and standard deviation quantify dispersion around the mean. Standard deviation is in the same units as the data and aids interpretation. Variance is central to statistical formulas and modeling, so both metrics support descriptive and inferential analyses.