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March 26, 2017

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An urn contains 4 blue balls, 5 yellow balls and 7 red balls. if a single ball is selected, find the probability thet the ball is
Red?
Not blue?
blue or yellow

  • statistics - ,

    a) 7/16 red.

    b) 5/16 + 7/16= 12/16=>3/4

    c) 4/16 + 5/16 = 9/16

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