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fagarra
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Tyro
Asked: 2021-03-31T13:24:36+00:00 In: ,

Statistics and Probability

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In a math class there are 3 girls and 5 boys. The teacher asks a volunteer to come to the board. What is the probability that the student is a girl?

  1. 5/8
  2. 3/8
  3. 3/5
  4. 5/3
grade 12

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1 Answer

  2. acedstud
    Best Answer
    This answer was edited.

    Probability is a chance of an event happening. The probability of an event, P(E), is given by P(E)=\dfrac{\text{number of events, E}}{\text{Total possible outcomes}}.

    Thus, in the class, there are 3 girls and a total of 3 + 5 = 8 students.

    Therefore, the probability that the volunteer is a girl is

    P(girl) =\dfrac{\text{number of girls}}{\text{Total number of students}}=\dfrac{3}{8}.

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