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Rajiv and Robin play 12 games of chess. Rajivs 6 games, Robin wins 4 games and 2 gameswinend in a draw. They agree to play3 more gamesCalculate the probability that out of these 3games, two games end in a draw. |
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Answer» Look at all the possible outcomes there are 3^3 or 27 of them. AAA AAB AAD ABA ABB ABD ADA ADB ADDBAA BAB BAD BBA BBB BBD BDA BDB BDDDAA DAB DAD DBA DBB DBD DDA DDB DDD Probability that two games end in a draw = 5/27 |
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