美国数学竞赛题(都英语进)1.Make two random marks on a long stick.(a) If you then break the stick into k pieces of equal length,what's the chance the two marks are on the same piece?(b) If you then break the stick into k pieces of random
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美国数学竞赛题(都英语进)1.Make two random marks on a long stick.(a) If you then break the stick into k pieces of equal length,what's the chance the two marks are on the same piece?(b) If you then break the stick into k pieces of random
美国数学竞赛题(都英语进)1.At a high school in Germany,80% of all students in the school are male,but only 5% ofthe male students and 10% of the female students are on the math team.If a member ofthe math team is selected at random,with
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