If you roll a pair of fair eight sided die, what is the probability of getting a sum of 5?

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28-02-2024
Mathematics

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If you roll a pair of fair eight sided die, what is the probability of getting a sum of 5?

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26willisk 26willisk · Answer 1 · 2024-02-28T22:25:05+01:00

26willisk 26willisk

28-02-2024

Answer:

You have 4 ways to get a sum of 5 — (1,4), (2,3), (3,2), and (4,1). The probability of throwing a sum of 5 is 4/36 = 1/9. The expected number in 180 throws is 180 × (1/9) = 20.

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