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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 신나고 재미있는 규칙 4를 만들려고 했다가 이상한 문제가 된 문제
관종이
2020.01.30 07:32
조회 635
마리오와 루이지는 '토비병'의 근원지인 꼬꼬마 동산에 놀러 가려고 한다.
왜 그런지 모르겠지만, 마리오는 루이지를 설득하여 결국에 데이지 공주와 같이 데려 갔다.
꼬꼬마 동산에서 보라돌이 3명, 뚜비 5명, 나나 2명, 뽀 5명과 접촉하였으며,
꼬미토비들 중에서 바 1명, 핑 5명, 엄비덤비 6명, 루루 5명, 더글디 9명, 미미 3명, 닌 4명, 그리고 다다 2명과 접촉하였다.
꼬미토비들은 텔레토비의 아이들이다.
보라돌이들은 토비병을 가질 확률은 10%, 뚜비는 5%, 나나는 20%, 뽀는 15% 이며,
바, 엄비덤비, 루루, 미미, 닌은 5%, 핑은 10%, 그리고 더글디와 다다는 15%이다.
마리오과 병을 루이지와 데이지에게 옮을 확률은 10%, 루이지는 5%, 데이지도 5%이다.
마리오는 이 병에 면역을 가질 확률은 10%, 루이지와 데이지는 각각 5%이다.
이때, 마리오, 루이지, 데이지가 토비병에 걸릴 확률은?
지금 바로
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