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

Question

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)
○ MAD; the data distribution has outliers
○ IQR; the data distribution is skewed
○ IQR; the data distribution is symmetrical
MAD; the data distribution is symmetrical

Answer 1

○ MAD; the data distribution has outliers

In this case, the MAD (Mean Absolute Deviation) would be a better measure of variability for this dataset because there are outliers present (such as 155, 174, 189, 200, 209, 250). MAD is less affected by outliers compared to IQR, making it a more suitable measure of variability in this scenario.