2. 职称英语
  3. A clinic worked every day last week and had at least one patient everyday. If 10

A clinic worked every day last week and had at least one patient everyday. If 10

游客2024-01-12  12
问题 A clinic worked every day last week and had at least one patient everyday. If 10 patients went there by bus, what is the probability that at least 2 patients went to the clinic on the same day?
选项 A、1
B、1/2
C、1/3
D、7/10
E、无法计算
答案 A
解析 诊所上周七天都工作，每天至少有1个病人，现在共有10个病人看病，问至少有两个病人在同一天看病的概率。我们首先考虑至少有两个病人在同一天看病的情况，根据抽屉原则，一共有10个病人，而一个礼拜7天每天一个只能安排7个病人，那么一定有一天至少有两个病人看病，所以这道题目所求概率是1。
转载请注明原文地址:https://tihaiku.com/zcyy/3354749.html
相关试题推荐
随机试题
最新回复(0)