Statistics And Probability Question 138

Question: If $ 4,P(A)=6,P,(B)=10,P,(A\cap B)=1, $ then $ P,( \frac{B}{A} )= $

[MP PET 2003]

Options:

A) $ \frac{2}{5} $

B) $ \frac{3}{5} $

C) $ \frac{7}{10} $

D) $ \frac{19}{60} $

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Answer:

Correct Answer: A

Solution:

  •               $ P( \frac{B}{A} )=\frac{P(A\cap B)}{P(A)}=\frac{(1/10)}{(1/4)}=\frac{2}{5}. $