Statistics And Probability Question 12
Question: If $ P,(A)=\frac{1}{2},P,(B)=\frac{1}{3} $ and $ P,(A\cap B)=\frac{1}{4}, $ then $ P,( \frac{B}{A} )= $
Options:
A) 1
B) 0
C) $ \frac{1}{2} $
D) $ \frac{1}{3} $
Show Answer
Answer:
Correct Answer: C
Solution:
-
$ P(B/A)=\frac{P(A\cap B)}{P(A)}=\frac{1/4}{1/2}=\frac{1}{2}. $