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Solution of problem N4332 probability theory

Solution of problem N4332 probability theory

Seller: Massimo86

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Product description

  • In the box are 7 white and 5 black balls. One ball is taken out of the box 2 times, without returning them back. Find the likelihood that the first was extracted a white ball, and the second - black?

Additional information

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