Question

two histograms showing the number of pets owned by boys and girls in a science class are each skewed left. which measure of variability should be used to describe the data? mean median standard deviation interquartile range

Explanation:

Step1: Recall data - measure properties

The mean and standard - deviation are sensitive to outliers.

Step2: Analyze skewed data

Skewed left data has outliers on the left - hand side.

Step3: Select appropriate measure

The interquartile range (IQR) is resistant to outliers and is a good measure of variability for skewed data. The median is a measure of central tendency, not variability. So, for skewed left data, the interquartile range should be used to describe the data.

Answer:

D. interquartile range