Referring to the previous exercises, sometimes a categorical variable comes from a quantitative variable. For the gator data, the year can be regarded as quantitative. Here€™s a plot that takes advantage of that quantitative underpinning. What do you see in this plot that was harder to see in the two bar charts? Try to name at least two or three systematic patterns. Do keep in mind that small changes are likely due to chance. Large patterns are the ones that matter.

Time plot of Numbers of Alligators for Five Lakes

Transcribed Image Text:

140 120 + Pierce Marian Hatch Blue Seminole 100 80 60 40 20 1995 2005 2015 2000 2010 Year Harvest Size