The interquartile range is used as a measure of variability to overcome what difficulty of the range?
a. the range is influenced too much by extreme values
b. the range is negative
c. the range is difficult to compute
d. the sum of the range variances is zero
Answers b and c are 'way off (wrong). Answer d is not negative, and thus could not be the correct answer. That leaves Answer a: the range is influenced too much by extreme values.
