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Problem on probability

  1. Jul 3, 2014 #1
    Need help to solve calculus problem

    A box contains 8 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is black?

    Thanks
     
  2. jcsd
  3. Jul 3, 2014 #2

    Mentallic

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    Homework Helper

    This problem is very simple. What have you learned about probability in class so far?
     
  4. Jul 3, 2014 #3

    HallsofIvy

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    Staff Emeritus
    Science Advisor

    There is certainly no "Calculus" involved here, just basic arithmetic. And knowing the basic definitions, of course.
     
  5. Jul 4, 2014 #4

    adjacent

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    Gold Member

    Why do you think this calculus is involved in this problem?
     
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