수학동아 - 폴리매스

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함께 풀고 싶은 문제

창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.

[창의 퍼즐] [확률]11759번째 문제

space 2020.09.08 22:20 조회 470

문제 푼 사람 0명

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

이 문제는 11759번째 문제다

난 하루에 문제를 2~3개씩 낼 거고(휴일은 1개)

다른 유저가 5019명이고 0~7개씩 낸다고 가정 할때(0개 낼 확률은 50%)

오늘이 9월 8일 화요일 일때 10월에 누적 문제 수가 15000개가 넘을 확률은 얼마인가?

이전글 [수열]1223334444

다음글 [조합] 평면 큐브

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