Easy16 Messages 1 Reaction score 0 Thread starter Apr 8, 2009 #1 P(Ai)>0, for i=1,2,...n. P(B)>0. Show that if P(A1lB)<P(A1), then P(AilB)>P(Ai), for at least 1 value of i.
P(Ai)>0, for i=1,2,...n. P(B)>0. Show that if P(A1lB)<P(A1), then P(AilB)>P(Ai), for at least 1 value of i.
mathman Science Advisor Homework Helper Messages 8,130 Reaction score 575 Apr 8, 2009 #2 If you assume Ai are disjoint and the all Ai's fill up the sample space, then it is easy. Sum of P(Ai)=1 and Sum P(Ai|B)=1. You should be able to do the rest.
If you assume Ai are disjoint and the all Ai's fill up the sample space, then it is easy. Sum of P(Ai)=1 and Sum P(Ai|B)=1. You should be able to do the rest.