In other words, it is a fallacy of reaching a conclusion that one thing caused another, simply because they are regularly associated.
"[1] For example: "Every time I score an A on the test its a sunny day.
Therefore the sunny day causes me to score well on the test."
Here is the example the two events may coincide or correlate, but have no causal connection.
[2] Fallacies of questionable cause include: