A and B are independent PA03 and PB04 Find PAB Note The sho

A and B are independent. P(A)=0.3 and P(B)=0.4. Find P(A/B).

Note: The \'/\' should be vertical, but there\'s no button on the keyboard for that.

Solution

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

P(A and B) = P(A) * P(B) = 0.3 * 0.4 = 0.12

So, P(A|B) = 0.12 / 0.4

P(A | B) = 12/40 = 3/10 = 0.3 ---> ANSWER