Come up with an example of correlation

Come up with an example of correlation

Subject: Mathematics    / Statistics    

Question
Come up with an example of correlation, either positive or negative. This means think of a
relationship between two things in which if one thing increases, so does the other (positive
correlation) or if one thing increases the other decreases (negative correlation). This is
similar to the experiment in Chapter 2 about the flower petals (width increased as length
increased). If you get an example from a website, book, or magazine, please include the
website or the title of the book and/or magazine to verify your source.