Question

Question

Maria surveyed girls on the amount (in $) they spent on a dress for the middle school spring fling:

79, 79, 79, 82, 84, 85, 89, 90, 99, 100, 100, 100, 129, 139, 155, 174, 189, 200, 209, 250

Which measure of variability—IQR or MAD—best describes the spread of the dataset?

(1 point)
Responses

IQR; the data distribution is symmetrical
IQR; the data distribution is symmetrical

MAD; the data distribution has outliers
MAD; the data distribution has outliers

MAD; the data distribution is symmetrical
MAD; the data distribution is symmetrical

IQR; the data distribution is skew

Answer 1

IQR; the data distribution is skew

Since the dataset includes outliers and the data distribution is not symmetrical, it would be better to use the Interquartile Range (IQR) as a measure of variability to describe the spread of the data.