SOLUTION: In a certain college 30% of the students failed math, 20% failed english, and 15% failed both math and english. If a student failed english, what is the probability that he failed

Question 250075: In a certain college 30% of the students failed math, 20% failed english, and 15% failed both math and english. If a student failed english, what is the probability that he failed math?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
In a certain college 30% of the students failed math, 20% failed english, and 15% failed both math and english. If a student failed english, what is the probability that he failed math?
--------------------------
P(m|e) = P(m AND e)/P(e)
-----------------------------
P(m|e) = 0.15/0.20 = 0.075
==================================
Cheers,
Stan H.
RELATED QUESTIONS
: In a college 25% of students have failed their Math 15% failed Chemistry and 10%... (answered by ikleyn)

In a certain college town, 26.8 percent of the students failed Mathematics (Math),... (answered by psbhowmick,stanbon)

8) In an exam, 1/4 of the students failed both in English and math's, 35% students failed (answered by ewatrrr)

In a class of 60 male and 35 female students 80% class failed in chemistry, 30% in... (answered by Theo)

In school B, 10% students failed in science, 20% failed in commerce and 30% failed in... (answered by richwmiller)

in an examination,10% of the student failed in maths,20% failed in english and 5% failed... (answered by rothauserc)

in my math class of 30 students, 6 failed the math test, what percent of the class... (answered by LinnW)

In an examination, 24% of the students failed in Math and 33% in Science. If 9% of the... (answered by jorel1380)

the result of an examinatio. given to a class on three person A,B,C are :40%failed in... (answered by ikleyn)