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Nico rolls a number cube numbered 1 through 6. If he rolls the dice twice, how many ways could his rolls add up to exactly 5?

 Mar 1, 2020
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There are 4 ways: [4 +1], [1 + 4], [3 +2], [2 + 3] = 4 / 6^2 = 1 / 9

 Mar 1, 2020

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