CE Mathematics – Probability
2009-12-16 5:27 am
A box contains 12 eggs, 4 of which are rotten. The eggs are selected randomly, one after the other, from the box. What is the probability that only one is rotten?
回答 (2)
2009-12-16 6:51 am
✔ 最佳答案
Just picking 2 eggs out?The required probability=(4/16)(12/15)+(12/16)(4/15)
=2/5
2009-12-16 5:41 am
How many eggs are selected randomly?
收錄日期: 2021-04-23 23:21:25
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091215000051KK01511