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A bag contains 7 red balls and 5 green balls. A ball is drawn at random three times.

      

A bag contains 7 red balls and 5 green balls. A ball is drawn at random three times.
(a) Calculate the probability of drawing three red balls if:
(i) the ball is replaced after each draw.
(ii) the ball is not replaced after each draw
(b) Calculate the probability of drawing at least two red balls when the ball is not replaced after each draw.

  

Answers


sharon
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sharon kalunda answered the question on May 8, 2019 at 07:55


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