8th Class Mental Ability Data Handling Question Bank Statistics

  • question_answer
    The mark obtained by 30 students of class VIII in an examination are the following: 3, 7, 2, 8, 5, 4, 7, 8, 5, 2, 11, 22, 15, 14, 12, 13, 12, 11, 14, 20, 21, 23, 24, 6, 18, 22, 21, 12, 13, 14. Divide the data into five groups namely 0 - 5, 5 - 10, 10 - 15, 1 - 20, 20 - 25, Where 0 - 5 means marks greater than or equal to 0 but less than five, and Similarly 5 - 10 means marks greater than or equal to but less than 10 and so on, then which is the correct frequency table?

    A)
    Marks Tally Marks Frequency
    0 - 5 4
    5 - 10 7
    10 - 15 10
    15 - 20 2
    20 - 25 7
    Total 30

    B)
    Marks Tally Marks Frequency
    0 - 5 4
    5 - 10 7
    10 - 15 10
    15 - 20 2
    20 - 25 7
    Total 30

    C)
    Marks Tally Marks Frequency
    0 - 5 4
    5 - 10 7
    10 - 15 10
    15 - 20 2
    20 - 25 7
    Total 30

    D)
    Marks Tally Marks Frequency
    0 - 5 4
    5 - 10 7
    10 - 15 10
    15 - 20 2
    20 - 25 7
    Total 30

    E)
    Marks Tally Marks Frequency
    0 - 5 4
    5 - 10 7
    10 - 15 10
    15 - 20 2
    20 - 25 7
    Total 30

    Correct Answer: E


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