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COMMON MISTEAKS MISTAKES IN USING STATISTICS: Spotting and Avoiding Them

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Misunderstandings about Probability

... misunderstanding of probability, may be the greatest of all general impediments to scientific literacy.
Stephen Jay Gould, Dinosaur in a Haystack: Reflections on Natural History

There are many types of misunderstandings about probability. These are just a sample of some of the more common or problematical ones.

Misunderstandings arising from different perspectives on probability

Misunderstandings arising from lack of clarity about the reference category

Misunderstandings involving different uses of the word "risk"

Misunderstandings involving conditional probabilities