What is the mean for Doctor A’s data set on corrective lenses? What is the mean for Doctor B’s data set on corrective lenses? Write a sentence comparing the number of people who wear corrective lenses in the two data sets. What is the mean for Doctor A’s data set on glasses? What is the mean for Doctor B’s data set on glasses? Write a sentence comparing the number of people who wear glasses in the two data sets.

What is the mean for Doctor A’s data set on contacts? What is the mean for Doctor B’s data set on contacts? Write a sentence comparing the number of people who wear contacts in the two data sets.

What is the mean absolute deviation for Doctor A’s data set on corrective lenses?
What is the mean absolute deviation for Doctor B’s data set on corrective lenses? Write a sentence comparing the variation of the two data sets using their mean absolute deviations.

What is the mean absolute deviation for Doctor A’s data set on contacts? What is the mean absolute deviation for Doctor B’s data set on contacts? Write a sentence comparing these two data sets using their mean absolute deviations.

In parts E, F, and G, which data sets (corrective lenses, glasses, or contacts) show the most similar variation between Doctors?

Compare the difference of the means of the two data sets found in part H as a multiple m of their variability