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Solving Forwards, Solving Backwards

Maja has an unfair coin which is weighted so that, when flipped, it has a \( \frac{2}{3} \) chance of landing on heads and \( \frac{1}{3} \) chance of landing on tails.

If she flips the coin twice in a row, what is the probability it shows the same side both times?

Solving Forwards, Solving Backwards

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