**5 basic rules of probability** (i.e. P(A) + P(B) = 1) is a challenge. I've never been very good at memorizing formulas, but images stick in my head like ear worms. Whenever I come across a new formula, I try to make it visual with a picture or doodle. The following picture shows some of the images I created to learn the fundamentals; If you find it works better for you than straight formulas, check your learning style to see if another way of learning might be better for you than rote memorization of formulas.

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