Estimation and Computation

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The ratio of boys to girls in a class is 2:3. If a student is chosen at random to be on the student council, what is the probability it will be a girl?

  • Estimation and Computation -

    number of boys --- 2x
    number of girls --- 3x
    total number of students = 5x

    prob (girl) = 3x/5x = 3/5

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