Coin You

How do you answer the following coin tossing statistic problem?

A coin is weighted in such a way that a tail is 3x as likely to occur as a head. If the coin is tossed twice, what is the probability of obtaining two heads?

Okay, so what is the probability of Heads? It must be 1/4. Because then Tails is 3/4, which is 3x as likely.
So Prob of two Heads is 1/4*1/4 = 1/16

Super Mario RPG Part 2: Coin You Believe This

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