Two boxes a and b box a contains 4 red balls and 5 white
Course:- Basic Statistics
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Two boxes (A) and (B). Box (A) contains 4 red balls and 5 white balls, box (B) contains 2 red balls and 3 white balls. An experiment consists of drawing a ball from box (A) and placing it in box (B) and then drawing a ball from box (B). Draw the tree and find the probability that at least one ball is white.

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