.(1)50400,2520,36.·······················3分
(2)留图···································5分
(3)
-1
-1
4
5
-6
0
-1
1
-4
-5
6
0
4
-4
16
20
-24
0
5
-5
20
25
-30
0
-6
6
-24
-30
36
0
0
0
0
0
0
0
总共有25中结果,其中每种结果出现的可能性相同,
的值为负数的有8种,为正数的也有8种.······················8分
∴
(小宝得门票)=
(小贝得门票)=
∴P(小宝得门票)= P(小贝得门票)
∴游戏对双方公平 ············································10分
略