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[株洲一模]株洲市2023届高三年级教学质量统一检测(一)数学答案试卷答案

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18.(本小题满分12分)【解】设“甲没有获得门票”为事件M。,“甲获得开幕式门票”为事件M1,“甲获得赛事门票”为事件M2,“乙获得i张赛事门票”为事件N,(i=0,1,2)1M=030-方品…2分111P(No)…4分2243“甲乙都没有获得门票”为事件M,N,则P(MN)=P(M)P(No)=…6分40

书面表达One possible version:NOTICEA sports meeting will be held in the playground of our school from next Thursday to FridayAs you know, the pressure of study is very heavy now, especially for those senior 3. So the purpose of the sports meeting is to letevery student get relaxed, as a result of which we students can live happily and heal thilyEveryone is welcome to take part in it. Those who perform excellently at the sports meeting will get prizes. But don’ t take theresults so serously because taking part is more important than the result. Good luck to everyone!

[株洲一模]株洲市2023届高三年级教学质量统一检测(一)数学答案