If a variable is interval-ratio in level of measurement,the preferred measure of dispersion would be
A)the mean.
B)the range.
C)the standard deviation.
D)the percentile.

Question

Quizplus · Accepted Answer

When dealing with interval-ratio level data, the most appropriate measure of dispersion would be the standard deviation. This is because the calculation of standard deviation takes into account the distance of each data point from the mean, making it a comprehensive and reliable measure of variability. The mean and range are measures of central tendency and not variability. Percentiles can be used to describe the distribution, but they do not provide a measure of dispersion.

If a Variable Is Interval-Ratio in Level of Measurement,the Preferred