Quote:
Originally Posted by Varyon
Here's an interesting one though - technically, a coin is not a d2, it's a d3 where one side (the edge) has a much lower probability than the others (apparently for a US nickel you're looking at landing on its edge once out of 6000 throws - so you're looking at something like 5999/12,000 for Heads, 5999/12,000 for Tails, and 1/6,000 for Edge.
So... what would an actual d2 be?
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Biconvex, like the lens in a standard magnifying glass.