Question
Mathematics Question on Bayes' Theorem
Three urn A, B, C, A has 7 red and 5 black balls, B has 5 red and 7 black balls, C has 6 red and 6 black balls. One urn is selected and black ball is taken out. Find probability that the selected urn is A.
A
7/18
B
5/17
C
7/19
D
5/18
Answer
5/18
Explanation
Solution
The correct answer is option (D) : 5/18