Data and Statistics Review Iqr Mad

The dot plot represents the distribution of wages earned during a one-week period by 12 college students.

What is the median? Interpret this value based on the situation.

• $119; Most students made $119 per week.

• $118; Half of the students earned $118 or less and half of the students earned $118 or more.

• $118; The average weekly wage was $118.

• $119; Some of the students earned less than $119 and some of the students earned more than $119

Which person's dot plot would you expect to have a higher Mean Absolute Deviation (MAD)?

• Elena

• Jada

• Lin

Which class period has less variability in their test scores? Approximate the Interquartile Range (IQR) for that class period.

In science class, Clare and Lin estimate the mass of eight different objects that actually weigh 2,000 grams each. What information from the table provides information about variability in the data? Choose all the apply.

• Mean

• Mean Absolute Deviation (MAD)

• Median

• Interquartile Range (IQR)

Data Set A: The mean is 43.5 and the MAD is 3.7.

Data Set B: The mean is 12.8 and the MAD is 4.1.

Which data set shows greater variability?

• Data Set A

• Data Set B

• Both data sets have the same variability.