An even sum given a five appears
Two fair dice are rolled. Given that at least one die shows a 5, what is the probability that their sum is even? Give a decimal to four places.
Show hints (2)+
- Count the 11 ordered pairs containing at least one 5.
- 5 is odd - an even sum needs the other die odd too.
Answer
Reveal answer →Final answer
0.4545 (± 0.001)
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