9th Class Mathematics Sample Paper Mathematics Sample Paper-5

  • question_answer The following table shows the blood groups of 40 students of a class.
    Blood group A B O AB
    Number of students 13 7 14 6
    One student of the class is chosen at random. What is the probability that the chosen student has blood group O?

    A) 2.85       

    B)                  0.35

    C) 0.2                       

    D) 2.35

    E) None of these

    Correct Answer: B


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