IQR; the data distribution is skewed
The Interquartile Range (IQR) is a better measure of variability in this case because the data distribution is skewed, with some dresses being much more expensive than the majority of the others. MAD would not be as effective in capturing the spread of the dataset in this scenario.
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 skewed
IQR; the data distribution is skewed
MAD; the data distribution is symmetrical
MAD; the data distribution is symmetrical
IQR; the data distribution is symmetrical
IQR; the data distribution is symmetrical
MAD; the data distribution has outliers
1 answer