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9th Class Mathematics Probability Question Bank Probability

  • question_answer
    To know the opinion of the students about the subject probability a survey of 500 students also was recorded in the following data. What is the possibilities that a student chosen at random has no opinion?      
    Opinion Number of students
    Like 145
    Dislike 230
    No opinion 125

    A)  \[\frac{5}{9}\]                         

    B)  \[\frac{1}{4}\]    

    C)  \[\frac{1}{3}\]                         

    D)  \[\frac{1}{2}\]

    Correct Answer: B

    Solution :

    (b): No. of student chosen No. opinion option =125 Total students = 500 \[n(P)=\frac{125}{500}=\frac{1}{4}\]       


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