Introduction to Data Interpretation

Introduction to Data Interpretation

Easy Questions
Moderate Questions
Difficult Questions

Data Interpretation

Introduction to Data Interpretation
Table chart
Line chart
Pie chart
Bar graph
Mixed Graph
Data Sufficiency

Direction: The histogram shows the marks obtained by 45 students of a class. Look at the histogram and answer the questions.

  1. If the pass mark be 30, what is the number of failures?








  1. View Hint View Answer Discuss in Forum

    According to question , we seen in above bar graph
    Number of students who obtained 0 - 10 marks = 2
    Number of students who obtained 10 - 20 marks = 6
    Number of students who obtained 20 - 30 marks = 10

    Correct Option: C

    According to question , we seen in above bar graph
    Number of students who obtained 0 - 10 marks = 2
    Number of students who obtained 10 - 20 marks = 6
    Number of students who obtained 20 - 30 marks = 10
    Total number of failures = 2 + 6 + 10 = 18

  1. How many students have obtained marks 50 and above?








  1. View Hint View Answer Discuss in Forum

    As per the given bar graph , we see
    Number of students who obtained 50 - 60 marks = 4
    Number of students who obtained 60- 70 marks = 7
    Number of students who obtained 70 - 80 marks = 5

    Correct Option: D

    As per the given bar graph , we see
    Number of students who obtained 50 - 60 marks = 4
    Number of students who obtained 60- 70 marks = 7
    Number of students who obtained 70 - 80 marks = 5
    Required total number of students = 4 + 7 + 5 = 16

Direction: The following bar-diagram shows total number of males and females in five different organisations. Study it carefully to answer the questions.

  1. What is the ratio of average number of females from the organisations A, B and C to the average number of males from the organisations C, D and E?










  1. View Hint View Answer Discuss in Forum

    From the given bar diagram , we see
    Total number of females from the organisations A, B and C = 3000 + 3500 + 4000 = 10500
    Total number of males from the organisations C, D and E = 4700 + 2250 + 3250 = 10200
    Number of given organisation = 3
    Required ratio = Average number of females from the organisations A, B and C : Average number of males from the organisations C, D and E

    Required ratio =
    Total number of females from the organisations A, B and C
    		 :
    Total number of males from the organisations C, D and E
    Number of given organisationNumber of given organisation

    Correct Option: E

    From the given bar diagram , we see
    Total number of females from the organisations A, B and C = 3000 + 3500 + 4000 = 10500
    Total number of males from the organisations C, D and E = 4700 + 2250 + 3250 = 10200
    Number of given organisation = 3
    Required ratio = Average number of females from the organisations A, B and C : Average number of males from the organisations C, D and E

    Required ratio =
    Total number of females from the organisations A, B and C
    		 :
    Total number of males from the organisations C, D and E
    Number of given organisationNumber of given organisation

    Required ratio =
    10500
    		 :
    10200
    		 = 3500 : 3400 = 35 : 34
    33

  1. Males from organisations A and B together form what percent of total number of males from organisations C, D and E together?








  1. View Hint View Answer Discuss in Forum

    As per the given bar graph , we have
    Number of males from organisations A and B = 3500 + 4500 = 8000
    Total number of males from organisations C, D and E = 4700 + 2250 + 3250 = 10200

    Required percent =
    Number of males from organisations A and B
    		 × 100
    Total number of males from organisations C, D and E

    Correct Option: A

    As per the given bar graph , we have
    Number of males from organisations A and B = 3500 + 4500 = 8000
    Total number of males from organisations C, D and E = 4700 + 2250 + 3250 = 10200

    Required percent =
    Number of males from organisations A and B
    		 × 100
    Total number of males from organisations C, D and E

    Required percent =
    8000
    		 × 100 ≈ 78.4
    10200

  1. What is the ratio of the number of females from the organisations B and C to the number of males from the organisations D and E?








  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    Number of females from the organisations B and C = 3500 + 4000 = 7500
    Number of males from the organisations D and E = 2250 + 3250 = 5500
    Required ratio = Number of females from the organisations B and C : Number of males from the organisations D and E

    Correct Option: D

    On the basis of given graph in question ,
    Number of females from the organisations B and C = 3500 + 4000 = 7500
    Number of males from the organisations D and E = 2250 + 3250 = 5500
    Required ratio = Number of females from the organisations B and C : Number of males from the organisations D and E
    Required ratio = 7500 : 5500 = 15 : 11