Question

In a quiz program, 2 questions on Science, 4 questions on History, and 4 questions on Math are printed separately on 10 cards and placed upside down. Maria is asked to select 2 cards at random. What is the probability of Maria selecting 2 questions on Science

Answers

  1. The probability of Maria selecting 2 questions on Science is 1/ 5

    How to determine the probability

    From the information given, we have that there are;
    • 2 Science questions
    • 4 History questions
    • 4 Math questions
    The total questions = 2 + 4 + 4 = 10 questions
    We have that Maria picks two questions at random
    The probability of her selecting two questions on Science is given as
    P(2 science) = number of Science questions/ total number of questions
    P(2 science) = 2/ 10
    P(2 science) = 1/ 5
    The probability of picking two questions on Science is 1/5
    Thus, the probability of Maria selecting 2 questions on Science is 1/ 5
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