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Solution of problem N4549 probability theory

Solution of problem N4549 probability theory

Seller: Massimo86

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Product description

  • There are 7 white and 3 black balls in the urn. One ball is taken out of the urn for good luck. What is the probability that the ball taken out is white?

Additional information

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)