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9th Class Mathematics Probability Question Bank Probability

  • question_answer
    In a random survey of a district, people were asked whether they will vote for political Party A, B or C. The results are shown alongside. What is the possibility that a randomly chosen voter in the district will vote for A?
    A B C
    60 100 160
    330 84 96

    A) 035  

    B)  0.25            

    C)  0.45                            

    D)  0.55

    Correct Answer: A

    Solution :

    (a): \[n\left( E \right)=390,n\left( S \right)=930\] \[n\left( P \right)=\frac{390}{390}=0.35\]                        


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