发布网友 发布时间:2022-05-10 00:22
共1个回答
热心网友 时间:2023-10-14 20:48
(1)由题意可得某两人选择同一套餐的概率为:1 |
8 |
1 |
8 |
1 |
2 |
1 |
2 |
3 |
8 |
3 |
8 |
13 |
32 |
1 |
8 |
1 |
8 |
1 |
64 |
C | 12 |
1 |
8 |
3 |
8 |
6 |
64 |
3 |
8 |
3 |
8 |
9 |
64 |
C | 12 |
1 |
8 |
1 |
2 |
8 |
64 |
C | 12 |
1 |
2 |
3 |
8 |
24 |
64 |
1 |
2 |
1 |
2 |
16 |
64 |
X | 400 | 500 | 600 | 700 | 800 | 1000 | ||||||||||||
P |
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|
|
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|
1 |
64 |
6 |
64 |
9 |
64 |