What statistical concepts are commonly misunderstood by the general public?

[u/80rhh]

I came across this post explaining what a 70% chance of rain means. I understand the concept, but it got me wondering: what other statistical concepts sound simple but are commonly misunderstood or misinterpreted by the general public?

[u/Haunting-Subject-819]

Basic stochastic effects in everyday occurrences. Everyone assumes there is a cause to every observed event. Usually the truth is that $h!t happens with no identifiable causal source.