swordfish Posted January 29, 2014 Report Share Posted January 29, 2014 hello, i was wondering if any of you can help me figure this out. I'm playing a game of rock-paper-scissors against a computer. My goal is to win 15 times in a row. Let's say that the computer picks rock/paper/scissors in a completely random way; it doesn't use a pattern nor does it have AI. My question is, if I were to play against the computer non-stop until i meet my goal (or i die), which approach would have the best chance of getting 15 wins in a row? A. Keep playing ROCK all the way. B. Using a pattern i.e. ROCK -> PAPER -> ROCK -> SCISSORS -> PAPER -> SCISSORS then repeat C. Randomly choosing between rock/paper/scissors every round. D. They are all equally bad/good. E. The above are all crap, use this --> (INSERT BEST APPROACH HERE). F. Other answer. (please specify) 1 Quote Link to comment Share on other sites More sharing options...
phil1882 Posted March 2, 2014 Report Share Posted March 2, 2014 since random is the optimal strategy, the best way to beat it is to be random yourself. the chances of winning 15 in a row are roughly (1/3)^15 = .0000006969 % which means you should do so after roughly 1 million games. Quote Link to comment Share on other sites More sharing options...
bonanova Posted April 1, 2014 Report Share Posted April 1, 2014 The answer is D. Since the computer plays randomly, your chance of winning does not depend on the strategy you use. Quote Link to comment Share on other sites More sharing options...
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