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@zee Your picture of the 3 distributions is the first and only comparison picture that coincides with the definition of leptokurtic and platykurtic distributions that I have ever seen. Why is it so hard to find another clear picture of these distributions? Just google for images of “leptokurtic vs normal kurtosis”, and I don’t think you’ll find one image that shows leptokurtic tails that are actually fatter than normal tails. Do you know of any other websites with accurate depictions like yours? Thx.