You want a measure of dispersion for an interval/ratio level variable. You want the measure that makes use of the fact that the attributes are not only different and have rank order but also represent a numeric scale. What statistic would you calculate?
A) mean
B) mode
C) percent distribution
D) standard deviation

Question

Quizplus · Accepted Answer

Standard deviation is the measure of dispersion which takes into account the fact that the variable is from an interval/ratio scale and has a numeric value assigned to each attribute. It measures the variability of data from the mean and indicates how spread out the data is.

You Want a Measure of Dispersion for an Interval/ratio Level