Question: Suppose 4 dice are simultaneously rolled multiple times until 2 of the dice show an even number. What is the probability that strictly more than

Suppose 4 dice are simultaneously rolled multiple times until 2 of the dice show an even number. What is the probability that strictly more than 2 rolls are required? Express your answer as a fraction or another expression as before. I keep getting 9/256 but it is incorrect.

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