单选题
A box contains 20 balls numbered from...
发布于 2022-03-03 17:21:32
A box contains 20 balls numbered from 1 to 20 inclusive. If Jane removes
a ball at random and replaces it, and then Kate removes a ball at
random, what is the probability that both women removed the same ball?
登录后免费查看答案
关注者
0
被浏览
11
