Question 446000
   <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
Note: P(A|B) = P(A and B)/P(B)  |P(A|B)read Probability of A, given B occurred
  P(A) = 0.3 and P(B) = 0.9 
P(A and B) = P(A)*P(B) 
In this example:
P(A and B)= .3*.9 = 0.18
P(A|B) = .18/.9 = .2