From the least difficult to the most difficult to compute, rank the measures of dispersion.
A)Mode, median, mean
B)Range, mean deviation, variance
C)Variance, mean deviation, range
D)There is no difference.

Question

Quizplus · Accepted Answer

The measures of dispersion listed in option B from least difficult to most difficult to compute are: range, mean deviation, and variance. Range only requires the determination of the difference between the maximum and minimum values, which is a simple process. Mean deviation involves calculating the average of the absolute differences between each value and the mean. This is slightly more complicated than range, but still relatively easy. Variance, on the other hand, requires squaring the deviations from the mean, summing these squares, and dividing by the number of values. This is the most complex of the three measures listed in option B. Therefore, option B correctly ranks the measures of dispersion in order of increasing difficulty of computation.

From the Least Difficult to the Most Difficult to Compute