This graph tells a very simple tale ... This chart is one of the best examples I’ve ever seen detailing how correlation and causation can have absolutely nothing to do with each other.

In this article, you'll learn the basics of simple linear regression ... In our previous example, if the correlation is +1 and the GDP increases by 1%, then sales would increase by 1%.

The concept is pretty simple — find two things that correlate with one another, and present it as though it means something. The blog lists a bunch of extremely funny examples, for example ...

Image caption, Once all eight data points have been plotted give the graph an appropriate title, for example 'Maths and Science assessment marks'. For a positive correlation, as one variable ...

while a zero correlation implies no linear relationship at all. For example, large-cap mutual funds generally have a high positive correlation to the Standard and Poor's (S&P) 500 Index or nearly one.

A shorter period, though, could be used to compare long-term correlation. Below is an example of calculating ... would show as a downward slope on a graph. The Pearson correlation coefficient ...