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함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 동전동전동전동전
전자기역학 2020.04.05 07:05 조회 519
문제 푼 사람 0명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

동전이 4개가 있다. 역학이는 이 동전 4개를 갖고 실험을 진행한다. 실험의 과정은 다음과 같다.

1) 남은 동전 모두를 던진다.

2) 이 중 앞면이 나온 동전은 자판기에 투입한다.

3) 모든 동전을 자판기에 넣었을 때 실험이 끝난다. 실험이 끝나지 않았으면 1, 2과정을 반복한다.

이때 역학이는 1번 과정을 처음 시작할 때 한 것 포함해서 3번을 했다고 할 때,

이 확률을 구하여라.

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  •  
    △π Lv.9 2020.04.05 07:13

    [틈새 홍보] 이 문제의 심화 버전 제 문제가 존재합니다!

    http://www.polymath.co.kr/contents/view/13237

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  •  
    다시 도전
    은총알 Lv.11 2020.04.05 07:15 비밀댓글

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    Function: require_once

    비밀 댓글이 등록 되었습니다.
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  •  
    sicma Lv.11 2020.05.16 22:38 비밀댓글
    비밀 댓글이 등록 되었습니다.
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