[exgrv]

A lot of people play the lottery. Only one person did this experiment. When you test multiple hypothesis (as in your lottery example), you need to perform a correction[2,3].

[1] https://xkcd.com/882/

[2] https://en.wikipedia.org/wiki/Multiple_comparisons_problem

[3] https://en.wikipedia.org/wiki/Bonferroni_correction