Which of the following is a disadvantage of using the range as a measure of variation?
a. It is limited because only two of the scores in the distribution are used to derive it.
b. It is easily distorted by an unusually high or low score in a distribution.
c. It can only be used with nominal data.
d. It is limited because only two of the scores in the distribution are used to derive it and it is easily distorted by an unusually high or low score in a distribution.