Practice problem

Scatter Plots: Correlation vs. Causation

Image by HeyouRelax via [Pixabay](https://cdn.pixabay.com/photo/2017/11/01/16/48/cube-2908607_1280.jpg) ([CC0](https://pixabay.com/en/service/terms/#usage)) — Rubik's cube!

Charlotte, a math major, found she could solve a Rubik's cube in $20$ seconds. Her sister Opal, an English major, solved it in two minutes. Charlotte surmised that having more math knowledge causes your Rubik's cube-solving speed to increase. Is she correct?