Math Probability

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At a political rally there are 20 republicians 13 democrates 6 independents. if a person is chosen at random what is the probability that the person is either a democrate or and independent?

  • Math Probability -

    "at random" means all choices have equal probability.
    Sample space = 20+13+6=39
    There are 13 democrates and 6 independents for a total of 19.
    What is the probability?

  • Math Probability -

    19/39

  • Math Probability -

    Correct!

  • Math Probability -

    it would be 19 over 39. Good luck~!:)

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