Also, later on, the substitute prof was showing us an example of lurking variables using a scatterplot about storks and the number of births in Europe. Basically, the two have nothing to do with each other, so there must be a lurking variable that is causing them to seem related. However, he tried to be funny and tricky and said that plot is based on true data. Dumb girl believed it and got really confused trying to understand why he would say that babies come from storks.
And then she started talking about Dumbo.