In a corporation, 40% of the employees are male. Among the male, 30% are foreigners and 70% are locals.
60% of the employees are female. 20% of them are foreigners are 80% of them are locals.
If 2 employees are randomly selected, find the probability that they are both local but different gender?
Probability Question (20 pt)
2013-03-21 6:28 am
回答 (2)
2013-03-21 5:30 pm
✔ 最佳答案
1 male=0.4 => 2 males=0.161 female=0.6 => 2 females=0.361 male & 1 female=0.4*0.6=0.24Locals=0.4*0.7+0.6*0.8=0.28+0.48=0.76Locals(male+female)=0.76*0.24=0.1824......ans
2013-03-21 8:12 am
你好....
答案,計法自己參詳下
40/100 x 70/100 + 60/100 x 80/100
=19/25
答案,計法自己參詳下
40/100 x 70/100 + 60/100 x 80/100
=19/25
收錄日期: 2021-04-13 19:22:23
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130320000051KK00373