2)In a certain hospital,there are 15% of the patientswith dental disease,11% of the patients with eye diseases, and 21%of the patients with either dental or eye diseases.A patient is selected at random from the hospital.
a)Find the probability that the patient has got dental and eye diseases.
b)Given that the patient has got a dental disease , find the probability that he has got an eye disease as well
c)Given that the patient has got a dental disease as well.
F5 MATHS(PROBABILITY 2)
2007-10-07 5:03 am
回答 (1)
2007-10-07 5:17 am
✔ 最佳答案
(a) Required probability = 15%+11%-21% = 5% = 0.05(b) P(eye disease as well | dental disease) = P(eye disease and dental disease)/P(dental disease) = 0.05/0.15 = 1/3
(c) What are you asking about?
收錄日期: 2021-04-13 18:12:09
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071006000051KK04945