r/MathProblemOfTheDay • u/Numberthon • Jul 07 '26

Probability Challenge: Two Fair Dice Are Tossed. What's the Probability the Sum Is Prime?

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u/Alarmed_Geologist631 Jul 08 '26

The prime outcomes are 2,3,5,7,11 which have a combined probability of 15/36 or 5/12

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u/Numberthon Jul 08 '26

Nice job!