Question

Which statement is true about the distribution? A line ranging from 0 to 120 with boxes between 15 and 28, 28 and 34, 34 and 40, and 40 and 48. The IQR is the best measure of variability because the distribution has an outlier. Either the IQR or the range are good measures of variability because the distribution has an outlier. Either the IQR or the range are good measures of variability because the distribution has no outliers. The range is the best measure of variability because the distribution has an outlier.

Answer 1

Each statement mentioned indicates that there is an outlier.  Whenever there is an outlier, the interquartile range is always going to be the best measure of variability because an outlier will make the data seem more variable due to the number that is far away from the rest of the numbers.

The correct answer is the first choice.