- (A) Measures of variability (e.g., variance, standard deviation, range) show how spread out a
distribution of scores is. The range (the highest score minus the lowest score) is less informative
than the variance or standard deviation, which shows the average distance of all scores in a
distribution from the mean. The mean, median, and mode are measures of central tendency; their
aim is to mark the center of a distribution, not to say how spread out the distribution is.
marvins-underground-k-12
(Marvins-Underground-K-12)
#1