Exercise

Box plots for outliers

In addition to indicating the center and spread of a distribution, a box plot provides a graphical means to detect outliers. You can apply this method to the msrp column (manufacturer's suggested retail price) to detect if there are unusually expensive or cheap cars.

Instructions

100 XP

Construct a box plot of msrp.
Exclude the largest 3-5 outliers by filtering the rows to retain cars less than $100,000. Save this reduced dataset as cars_no_out.
Construct a similar box plot of msrp using this reduced dataset. Compare the two plots.