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16 June, 07:30

A bag contains 40 marbles: 20 blue and 20 green. you are randomly drawing marbles out of the bag one at a time, replacing them after each draw. you have just picked 10 blue marbles in a row. what is the probability of picking a blue marble again?

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  1. 16 June, 08:19
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    If you are replacing the marble after each draw the probability will always be 20/40 or 1/2
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