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)
Responses

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

Range; the distribution is symmetrical, or close to it, and there aren’t any outliers in the dataset.
Range; the distribution is symmetrical, or close to it, and there aren’t any outliers in the dataset.

IQR; the distribution is symmetrical, or close to it, and there aren’t any outliers in the dataset.
IQR; the distribution is symmetrical, or close to it, and there aren’t any outliers in the dataset.

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

Answer 1

are you 100% sure that's right

Answer 2

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

The range would best describe the spread of this dataset because the distribution is skewed and there are outliers present.

Answer 3

My apologies for the confusion. Let me correct my response.

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

The interquartile range (IQR) would be a better measure of spread because the distribution is skewed, and there are outliers present in the dataset.