Exercise

Exercise 2. Time series plot - measles and smallpox

The sample code given creates a time series plot showing the rate of measles cases per population by state. We are going to again modify this plot to look at smallpox cases instead.

Instructions

100 XP

Modify the sample code for the time series plot to plot data for smallpox instead of for measles.
Once again, restrict the plot to years in which cases were reported in at least 10 weeks.