Even first die given a sum of eight
Two fair dice are rolled. Given that their sum is 8, what is the probability that the first die shows an even number? Give a decimal to four places.
Show hints (2)+
- List the ordered pairs that sum to 8 - there are only five.
- Among those five, how many have an even first die?
Answer
Reveal answer →Final answer
0.6
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Asked at: Timed Mental-Math & Sequences, Game-Based Aptitude