A consignment of 12 car engines contains 1 engine that is faulty. Two engines are chosen randomly from this consignment for testing. How many different combinations of 2 engines can be chosen?
Please provide explanation. Thanks
Probability Question?
2016-10-05 11:48 pm
回答 (1)
2016-10-05 11:56 pm
Well, the other 11 engines are considered perfectly fine, and therefore identical.
If we call a "good" engine G and the one "bad" engine B , then we have 2 different combinations shown:
BG
GG
If we call a "good" engine G and the one "bad" engine B , then we have 2 different combinations shown:
BG
GG
收錄日期: 2021-04-18 15:36:55
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20161005154848AADrn1y