●●● ●●●● ●●●●● ●●●● ●●●●● Example: Toss a dice once ●●●● Let event A=“geta6” Let event B=‘“ get an even number” If the die is fair, then P(A)=I andP(B)=2 However if we know that B has occurred. then there is an increased chance that a has occurred P(A occurs given that B has occurred)=3.F result 6 esult 2 or 4 or We write P(A given B)=P(A B)=3 Question: what would be P(B A)? P(B A)=P(B occurs, given that A has occurred P( get an even number, given that we know we got a 6)Example: Toss a dice once