SOLUTION: Prove: P(A1 U A2 U.....U Ak) = P(A1) + P(A2) + ....+P(Ak)

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Question 487817: Prove: P(A1 U A2 U.....U Ak) = P(A1) + P(A2) + ....+P(Ak)
Answer by chessace(471) About Me  (Show Source):
You can put this solution on YOUR website!
You need another assumption to complete this proof.
Namely that the Aj are indepenent.