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 is symmetrical MAD; the data distribution is symmetrical MAD; the data distribution has outliers MAD; the data distribution has outliers IQR; the data distribution is skewed
MAD; the data distribution has outliers
The dataset has a few higher values such as 174, 189, 200, 209, and 250 that are significantly higher than the rest of the values. This suggests that there are outliers present in the data. MAD (Mean Absolute Deviation) is a better measure of variability in this case as it is less sensitive to outliers compared to IQR (Interquartile Range).