Question

Determine whether the range or interquartile range best describes the spread of a
dataset.
The times (in seconds) for a high school boys' 100-meter race:
11.0 11.2 11.7 12.2 12.4 12.6 12.8 12.9 13.1 13.3 13.8 14.2 14.3
14.3 16.5 17.6 18.0
(1 point)
Range; the distribution is symmetrical, or close to it, and there aren't any outliers in the
dataset.
Range; the distribution is skewed, and there are outliers in the dataset.
IQR; the distribution is symmetrical, or close to it, and there aren't any outliers in the
dataset.
O IQR; the distribution is skewed, and there are outliers in the dataset.

Answer 1

Range; the distribution is skewed, and there are outliers in the dataset.

The range would best describe the spread in this case because the dataset is skewed (not symmetrical) with a wide range of values. Additionally, there are outliers present in the dataset which may affect the accuracy of the interquartile range as a measure of spread.