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: Study the following histogram and answer the questions.

  1. The ratio of the number of persons between the age group of 20 – 25 and 30 – 35 is :








  1. View Hint View Answer Discuss in Forum

    According to given bar graph , we have
    Number of persons in the age group of 20 – 25 = 250
    Number of persons in the age group of 30 – 35 = 75
    Required ratio = Number of persons in the age group of 20 – 25 : Number of persons in the age group of 30 – 35

    Correct Option: C

    According to given bar graph , we have
    Number of persons in the age group of 20 – 25 = 250
    Number of persons in the age group of 30 – 35 = 75
    Required ratio = Number of persons in the age group of 20 – 25 : Number of persons in the age group of 30 – 35
    Required ratio = 250 : 75 = 10 : 3

  1. The number of persons in the age group 20 – 30 years is :








  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    Number of persons in the age group 20 – 25 years = 250
    Number of persons in the age group 25 – 30 years = 250
    Required answer = Number of persons in the age group 20– 25 years + Number of persons in the age group 25–30 years

    Correct Option: B

    On the basis of given graph in question ,
    Number of persons in the age group 20 – 25 years = 250
    Number of persons in the age group 25 – 30 years = 250
    Required answer = Number of persons in the age group 20–25 years + Number of persons in the age group 25–30 years
    Required answer = 250 + 150 = 400

  1. The total number of persons in the age group of 15 years to 45 years is :








  1. View Hint View Answer Discuss in Forum

    According to given histogram , we have
    Number of persons in the age group of 15 - 20 years = 450
    Number of persons in the age group of 20 - 25 years = 250
    Number of persons in the age group of 25 - 30 years = 150
    Number of persons in the age group of 30 - 35 years = 75
    Number of persons in the age group of 35 - 40 years = 50
    Number of persons in the age group of 40 - 45 years = 25

    Correct Option: C

    According to given histogram , we have
    Number of persons in the age group of 15 - 20 years = 450
    Number of persons in the age group of 20 - 25 years = 250
    Number of persons in the age group of 25 - 30 years = 150
    Number of persons in the age group of 30 - 35 years = 75
    Number of persons in the age group of 35 - 40 years = 50
    Number of persons in the age group of 40 - 45 years = 25
    Total number of persons in the age group of 15 years to 45 years = 450 + 250 + 150 + 75 + 50 + 25 = 1000

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

  1. How many students have obtained 30 or more marks but less than 40?








  1. View Hint View Answer Discuss in Forum

    From the given bar diagram , we seen in bar of class interval 30–40
    Number of students who obtained 30 or more marks but less than 40 = 3

    Correct Option: A

    From the given bar diagram , we seen in bar of class interval 30–40
    Number of students who obtained 30 or more marks but less than 40 = 3
    Thus , correct answer is option A .

  1. How many students have obtained marks less than 10?








  1. View Hint View Answer Discuss in Forum

    According to given bar graph , we have
    Number of students who have obtained marks less than 10 = 2

    Correct Option: A

    According to given bar graph , we have
    Number of students who have obtained marks less than 10 = 2
    Hence , required answer is option A .