Page 206 - Probability Demystified
P. 206

CHAPTER 11         Game Theory                                              195

                             25s þ 75ð1   sÞ¼ 90s   50ð1   sÞ

                             25s þ 75   75s ¼ 90s   50 þ 50s

                                  100s þ 75 ¼ 140s   50

                           100s   140s þ 75 ¼ 140s   140s   50

                                  240s þ 75 ¼ 50

                             240s þ 75   75 ¼ 50   75

                                       240s ¼ 125
                                       240s    125
                                            ¼
                                       240     240
                                              25
                                          s ¼
                                              48
                        Hence, General B should defend by land with a probability of  25  and by
                                                                                    48
                     sea with a probability of  23 . A tree diagram for this problem is shown
                                               48
                     in Figure 11-4.
















                                                     Fig. 11-4.

                        A payoff table can also consist of probabilities. This type of problem is
                     shown in the next example.
   201   202   203   204   205   206   207   208   209   210   211