成功考取一張證書，需通過三次考試。第一次考試的及格率為３５％，第二次為４６％，第三次為５３％。成功地通過三次考試的或然率是什麼？
In order to obtain a certificate, canadiates must pass all 3 level exams. The passing precentage of level one, two and three are 35%, 46% and 53% respectively. What is the probability of passing all three level exams?
謝謝！
Thank you!
Probablitiy Problem
2010-05-24 1:29 am
回答 (1)
2010-05-24 1:38 am
✔ 最佳答案
P(第一次考試合格) = 35%P(第二次考試合格) = 46%
P(第二次考試合格) = 53%
P(成功通過三次考試)
= P(第一次考試合格) x P(第二次考試合格) x P(第二次考試合格) = 53%
= 35% x 46% x 53%
= 8.533%
參考: andrew
收錄日期: 2021-04-13 17:15:53
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100523000051KK01184