Introduction to Data Interpretation


Direction: In the following questions, the Graph shows the demand and production of different companies. Study the graph and answer the questions.

  1. The demand of company B is what percentage of the production of company F?









  1. View Hint View Answer Discuss in Forum

    As per the given graph in question ,
    The demand of company B = 3150 units
    The production of company F = 4500 units

    Required percentage =
    The demand of company B
    × 100
    The production of company F

    Correct Option: B

    As per the given graph in question ,
    The demand of company B = 3150 units
    The production of company F = 4500 units

    Required percentage =
    The demand of company B
    × 100
    The production of company F

    Required percentage =
    3150
    × 100 = 70 %
    4500


Direction: The marks obtained by 273 examinees are shown by the frequency polygon. Given that mean marks is 59.5. Study the frequency polygon and answer the given questions.

  1. If 40 is the pass marks, percentage of students failed is









  1. View Hint View Answer Discuss in Forum

    According to given graph in question ,
    Number of students who got 40% or less marks = 2 + 4 + 12 + 26 = 44
    Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273

    ∴ Required percent =
    Number of students who got 40% or less marks
    × 100
    Total number of students

    Correct Option: C

    According to given graph in question ,
    Number of students who got 40% or less marks = 2 + 4 + 12 + 26 = 44
    Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273

    ∴ Required percent =
    Number of students who got 40% or less marks
    × 100
    Total number of students

    ∴ Required percentage =
    44
    × 100 = 16.11 %
    273


  1. Percentage of the students who got marks above 60% and below 80% is









  1. View Hint View Answer Discuss in Forum

    From the above given graph , we can see
    Number of students who got marks above 60% and below 80% = 72 + 48 = 120
    Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273

    ∴ Required percent =
    Number of students who got marks above 60% and below 80%
    × 100
    Total number of students


    Correct Option: A

    From the above given graph , we can see
    Number of students who got marks above 60% and below 80% = 72 + 48 = 120
    Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273

    ∴ Required percent =
    Number of students who got marks above 60% and below 80%
    × 100
    Total number of students

    ∴ Required percentage =
    120 × 100
    = 43.95 %
    273


  1. Percentage of the students who get above 80% marks is









  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    Number of students who got above 80% marks = 24 + 8 = 32
    Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273

    ∴ Required percent =
    Number of students who got above 80% marks
    × 100
    Total number of students

    Correct Option: D

    On the basis of given graph in question ,
    Number of students who got above 80% marks = 24 + 8 = 32
    Total number of students = 2 + 4 + 12 + 26 + 35 + 42 + 72 + 48 + 24 + 8 = 273

    ∴ Required percent =
    Number of students who got above 80% marks
    × 100
    Total number of students

    ∴ Required percent =
    32
    × 100 = 11.72 %
    273


  1. The number of examinees getting more than average marks is









  1. View Hint View Answer Discuss in Forum

    As per the given line graph in question ,
    Given that , mean marks is 59.5 .
    Number of examinees getting more than average marks = 72 + 48 + 24 + 8 = 152

    Correct Option: C

    As per the given line graph in question ,
    Given that , mean marks is 59.5
    Number of examinees getting more than average marks = 72 + 48 + 24 + 8 = 152
    Hence , required answer is 152.