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歡迎您訪問數學考題練習:2002年11月23-29日在泉州銷售8000!

數學考題練習:2002年11月23-29日在泉州銷售8000

更新時間:2024-01-12 16:30:11作者:貝語網校

2002年11月23-29日在泉州銷售8000萬元即開型福利彩票(每張面額2元),特等獎100萬元,結果中一百萬元者有15名,假如你花10元買5張,下列說法正確的是寫

A.中一百萬元是必然事件

B.中一百萬元是不可能事件

C.中一百萬元是可能事件,但可能性很小

D.因為5÷15=,所以中一百萬元的可能性是33.3%

試題答案

C

試題解析

求得相應概率,即可得到相應的可能性.

解答:由題意知:彩票共有=40000000張,

而特等獎共有15張.

所以中獎概率為×5=.

因此,中一百萬元是可能事件,但可能性很小.

故選(C).

點評:用到的知識點為:概率較小的事件,發生的可能性也小.

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