Question

三个人按顺序去箱子里摸球，箱子里只有两个球蓝球和红球，当有人摸到红球就游戏结束了，求游戏没有顺利完

Answer 1

<table style="width:100%"> <tbody> <tr> <td> （9）摸出的是红球，7明获胜，取胜的概率是<span mathtag="math"> <table style="display:inline-table;vertical-align:middle" cellpadding="-1" cellspacing="-1"> <tbody> <tr> <td style="border-bottom:1px solid black"> x</td> </tr> <tr> <td> 94</td> </tr> </tbody> </table> </span> ；摸出的是黄球，7丽获胜，取胜的概率是<span mathtag="math"> <table style="display:inline-table;vertical-align:middle" cellpadding="-1" cellspacing="-1"> <tbody> <tr> <td style="border-bottom:1px solid black"> x</td> </tr> <tr> <td> 94</td> </tr> </tbody> </table> </span> ；摸出的是蓝球，7红获胜，取胜的概率是<span mathtag="math"> <table style="display:inline-table;vertical-align:middle" cellpadding="-1" cellspacing="-1"> <tbody> <tr> <td style="border-bottom:1px solid black"> 4</td> </tr> <tr> <td> 94</td> </tr> </tbody> </table> </span> ．<br><span mathtag="math"> <table style="display:inline-table;vertical-align:middle" cellpadding="-1" cellspacing="-1"> <tbody> <tr> <td style="border-bottom:1px solid black"> x</td> </tr> <tr> <td> 94</td> </tr> </tbody> </table> </span> ＜<span mathtag="math"> <table style="display:inline-table;vertical-align:middle" cellpadding="-1" cellspacing="-1"> <tbody> <tr> <td style="border-bottom:1px solid black"> 4</td> </tr> <tr> <td> 94</td> </tr> </tbody> </table> </span> ，所以这g游戏规则对三方不公平．<br>（c）把箱子里的篮球拿走9g，使三种球的数量相等，这g游戏规则就公平了．</td> </tr> </tbody> </table>