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歡迎您訪問數學考題練習:電腦上有一個有趣的“掃雷”游戲,圖是掃雷游戲的!

數學考題練習:電腦上有一個有趣的“掃雷”游戲,圖是掃雷游戲的

更新時間:2024-01-12 14:08:14作者:貝語網校

電腦上有一個有趣的“掃雷”游戲,圖是掃雷游戲的一部分,說明:圖中數字2表示在以該數字為中心的周邊8個方格中有2個地雷,小旗表示該方格已被探明有地雷,現在還剩下A、B、C三個方格未被探明,其它地方為安全區(包括有數字的方格),則A、B、C三個方格中有地雷的概率最大的方格是

A.A

B.B

C.C

D.無法確定

試題答案

A

試題解析

根據圖形發現B、C中只有一個地雷,所以知道A必為雷,則可得到答案.

解答:由圖形及題意可知:B、C中只有一個有地雷,

所以A必定有地雷,

所以A、B、C三個方格中有地雷的概率最大的方格是A,概率為1.

故選A.

點評:本題考查概率的求法與運用,一般方法:如果一個事件有n種可能,而且這些事件的可能性相同,其中事件A出現m種結果,那么事件A的概率P(A)=.

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