olymmath

HMMT 2014 U11

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Two fair octahedral dice, each with the numbers 1 through 8 on their faces, are rolled. Let NN be the remainder when the product of the numbers showing on the two dice is divided by 8 . Find the expected value of NN.

Dataset text NuminaMath olympiads. Quoted with source.

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\frac{11}{4}

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