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 IQR; the data distribution is skewed IQR; the data distribution is skewed MAD; the data distribution is symmetrical
IQR; the data distribution has outliers
In this case, using the Interquartile Range (IQR) would be more appropriate as the dataset has outliers like 129, 139, 155, 174, 189, 200, 209, and 250. MAD may not be the best measure of variability as it is more sensitive to outliers.