Question

If p(a)=.5 p(b)=.6 and p (a and b) =0.2,find p(a/b)

Answer 1

Explanation:

P(a) = 0.5

P(b) = 0.6

P(a and b) = 0.2

P(a/b)= ?

P(a/b)= Conditional probability of "a" given "b" has already occurred.

P(a/b) = P(a and b) / P(b)

= 0.2/0.6

= 1/3