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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Cacher.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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Function: driver
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Cacher.php
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Function: initiateCache
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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Function: _error_handler
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: model
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: getFloatingMyInfo
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 559
Function: get_footer
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
나도 수학쌤 문장제 문제를 변형해 문제를 내는 곳입니다.
[문장제 문제&개념응용] [확률] 확률의세계 3: 좌석배치
17수락
2020.11.17 09:02
조회 389
수락은 결국 비밀리에 배치되었던 라 우주선을 타기로 했다(그럼 전 문제는 왜낸건데?>>내맘이니까)
이번엔 어디 앉아야하는지 골라야 한다
그런데 이 세계에서는 확률로 다 따져봐야한다면서 어쩌고 저쩌고 계산을 하는 도중 수락은 자신이 앉을 곳을 고르기 시작했다
줄은 1 부터 55까지 있고 칸은 1부터 3까지 있다
수락은 멀미를 해서 멀미를 하지 않으려면 가운데 자리에 앉으면 안된다
그런데 또 수락은 칠교놀이에 트라우마가 있어 7에 관련된 모든 줄에 앉으면 안된다(단, 덧뺄셈은 제외한다)
그런데 수락은 무리수를 좋아해서 루트x의 값이 자연수가 되는 x의 값의 줄은 또 앉기 싫어한다
그러면 수락이 원하는 자리에 앉을 확률은 얼마인가?
지금 바로
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