This is your equation. P(a^bd^cd)=.35*.3+.65*(.3/(1-.35))=.405
The first part is correct. But the second part is not. There are two ways that c could be the first one dead. One way is for A to kill C. In that case, B gets to shoot next. The other way is for A to miss and then B kills C. In that case, A gets to shoot next. The prob is different depending on who shoots first, right? So your equation should be changed to this:
P(a^bd^cd)=.35*.3+(.3*.5+.7*.5)*(.3/(1-.35))=.336
Reply to Jinjing on question 3
所有跟帖:
• 回複:Reply to Jinjing on question 3 -guest007- ♀ (32 bytes) () 01/29/2010 postreply 21:27:36
• 回複:回複:Reply to Jinjing on question 3 -endofsuburbia- ♂ (35 bytes) () 01/29/2010 postreply 21:49:39
• 回複:回複:回複:Reply to Jinjing on question 3 -guest007- ♀ (93 bytes) () 01/30/2010 postreply 21:22:57
• 回複:回複:回複:回複:Reply to Jinjing on question 3 -endofsuburbia- ♂ (32 bytes) () 01/30/2010 postreply 22:15:37
• 回複:Reply to Jinjing on question 3 -jinjing- ♀ (62 bytes) () 01/29/2010 postreply 21:56:48
• Ha, I'm right,,you are... -jinjing- ♀ (16 bytes) () 01/29/2010 postreply 23:04:31
• .336 is correct -dynamic- ♂ (0 bytes) () 01/30/2010 postreply 00:09:55
• 回複:Wrong:P(a^bd^cd)=.336 -Jinjing- ♀ (141 bytes) () 01/30/2010 postreply 07:51:42
• 回複You're right,I'm going down. -Jinjing- ♀ (85 bytes) () 01/30/2010 postreply 09:54:42