Three boxes of the same appearance have the following proportions of black and white ball -box I - 5 black and 3 white, box II - 6 black and 2 white , box III - 3 black and 5 white ball.one of the box is selected as random and one ball is drawn randomly from it. What is the probability that the ball is black?
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Answer:
very easy
Step-by-step explanation:
the answer is 11 upon 44
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