SOLUTION: Many students entering unversity take a math course, 1J03. In this course, 11% of the students fail, and leave the university. 25% of the students pass, but get a low mark, and

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Question 919693: Many students entering unversity take a math course, 1J03.
In this course, 11% of the students fail, and leave the university.
25% of the students pass, but get a low mark, and move on to 1E03.
64% of the students pass, and get a high mark, and move on to 1KR3.
In 1E03, 15% fail, and leave the university. In 1KR3, 21% fail, and depart.
If a student tells his parents he failed mathematics and had to leave the university, what is the probability that he failed out of 1E03?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

	%	% fail	% of JO3 students failing a math course	

JO3	100%	0.11	0.11	

Advanced				

EO3	25%	0.15	0.0375	

KR3	64%	0.21	0.1344	

			0.2819	Tot

P(A|B) = P(A and B)/P(B)

P(failed  EO3 |failed Math & Left) = .0375/.2819

Wish You the Best in your Studies.