Answer:
- C. The IQR is the best measure of variability because the distribution has an outlier.
Step-by-step explanation:
We see 75% of data lies in the interval 0 - 48, and the 120 is the outlier.
We wouldn't use the range as it won't be a representation of variability.
The best measure would be IQR:
- The interquartile range is the best measure of variability for such a distribution.
- Because it's based on values that come from the middle half of the distribution, and not influenced by outliers
Correct choice is C.
