The semi-interquartile range indicates the deviation of a set of scores from the:
A)mode.
B)median.
C)mean.
D)none of the answers is correct.

Question

Quizplus · Accepted Answer

The semi-interquartile range is a measure of variability based on dividing a data set into quartiles. The values that divide each part are known as the first quartile (25th percentile) and the third quartile (75th percentile). The semi-interquartile range is calculated as half the difference between the third and first quartiles, effectively measuring the spread of the middle 50% of values around the median, not the mean or mode.

The Semi-Interquartile Range Indicates the Deviation of a Set of Scores