Question
There are two identical boxes containing respectively 4 white and 3 red balls, and 3 white and 7 red balls. A box is chosen at random and a ball is drawn from it. Find the probability that the ball is white.
Step 1
This can be given by the total probability theorem as follows: \[P(A) = P(E1) \cdot P(A|E1) + P(E2) \cdot P(A|E2)\] Show more…
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