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Natalie Goodwin

Feb 20, 2025

If you roll two fair six-sided dice, what is the probability that the sum is 555 or lower?

If you roll two fair six-sided dice, what is the probability that the sum is 555 or lower?
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4 Answers

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Miss Alice Doyle

Feb 20, 2025

Rolling a two six-sided dice means we would have (6x6) = 36 combinations.(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)  (2,1) (2,2) (2,3) (2,4) (2,5) (2,6)  (3,1) (3,2) (3,3) (3,4) (3,5) (3,6)  (4,1) (4,2) (4,3) (4,4) (4,5) (4,6)  (5,1) (5,2) (5,3) (5,4) (5,5) (5,6)  (6,1) (6,2) (6,3) (6,4) (6,5) (6,6)  It says to find the combinations whose sum is 5 or lesser. Those favorable combinations would be :-(1,1) (1,2) (1,3) (1,4)  (2,1) (2,2) (2,3)  (3,1) (3,2)  (4,1)  So we have favorable 10 combinations.Probability is the ratio of Favorable combinations to Total combinations.Probability = 10/36 = 5/18... Show More
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Miss Alice Doyle

Feb 20, 2025

It would be 5/18Step-by-step explanation:An easy way is to count outcomes. Of the 36 equally probable outcomes, 10 are less than or equal to 5, so the probability is 10/36 = 5/18.this is correct on khan academy 🙂... Show More
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Miss Alice Doyle

Feb 20, 2025

The answer is biodiversity resulting from new ancestors.... Show More
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