Scientists believe that if it wasn’t for the 4-year limited lifespan of an octopus, they would have become the dominant intelligent species on Earth, which means you and I could have been fish people rather than primates!
This is a real flow chart for choosing the correct statistical calculation, for various kinds of data, which I made for myself when I was studying Statistics for Psychology. Warning: Don't bring this graphic to your stats exam! Rather, memorize it, bring it in your head, draw it in the margin.
