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수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [행렬]내일은 맑을까? 비가올까?
로보카폴리
2020.08.16 08:17
조회 604
오늘이 맑을때 내일도 맑을 확률은 1/3, 흐릴 확률은 2/3이라 하자
또 오늘이 흐릴때 내일은 맑을 확률은 2/5, 흐릴 확률은 3/5라 하자(모든날은 반드시 흐리거나 맑거나 둘중 하나다)
그렇다면 문제 나간다.
1. 월요일에 맑았다고 가정하자. 그렇다면 다음주 월요일에 맑을 확률은 얼마나 되는가?
2. 1번째 날에 맑았다고 하자. 그렇다면 n번째 날에 맑을 확률은 얼마나 되는가?
(참고로 필자는 이문제를 sicma와 2시간 동안 고민했지만 결국 풀지 못했다는 전설이 있다니 믿거나 말거나)
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로보카폴리
Lv.11
2020.08.16 21:28
좋아요0
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두번째줄에 맑을 확률 2/5, 흐릴 확률 3/5 맞나요? 오타 있네요
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noobWD
Lv.2
2020.08.18 07:49
비밀댓글
확인요청중
비밀 댓글이 등록 되었습니다.
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로보카폴리
Lv.11
2020.08.18 21:46
비밀댓글
비밀 댓글이 등록 되었습니다!
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noobWD
Lv.2
2020.08.18 22:29
비밀댓글
비밀 댓글이 등록 되었습니다!
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