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 of data related to literate people of different age groups and answer the questions given below.

  1. Total number of literate people in the age group 15 to 45 years is








  1. View Hint View Answer Discuss in Forum

    As per the given above graph , we can see
    Number of literate people in the age interval 15-20 = 900
    Number of literate people in the age interval 20-25 = 800
    Number of literate people in the age interval 25-30 = 650
    Number of literate people in the age interval 30-35 = 600
    Number of literate people in the age interval 35-40 = 500

    Correct Option: B

    As per the given above graph , we can see
    Number of literate people in the age interval 15-20 = 900
    Number of literate people in the age interval 20-25 = 800
    Number of literate people in the age interval 25-30 = 650
    Number of literate people in the age interval 30-35 = 600
    Number of literate people in the age interval 35-40 = 500
    Number of literate people in the age interval 40-45 = 250
    Total number of literate people in the age group 15 to 45 years = 900 + 800 + 650 + 600 + 500 + 250 = 3700

Direction: Study the following histogram of marks in mathematics (out of 50) of students in a class and answer the following questions.

  1. If the students have got the marks out of 50 and if A+ grade has been declared for above 90%, then the number of students who have got A+ grade is :








  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    Number of students who score more than 90% = class – interval 45 – 50 = 10

    Correct Option: A

    On the basis of given graph in question ,
    Number of students who score more than 90% = class – interval 45 – 50 = 10
    Therefore , correct answer is option A.

  1. The percentage of number of passed students is (31 is the pass marks)








  1. View Hint View Answer Discuss in Forum

    From the given above histogram , we can see
    Total students ⇒ 135
    Successful students ⇒ 20 + 40 + 50 + 10 = 120

    ∴ Required percent =
    120
    		× 100
    35


    Correct Option: D

    From the given above histogram , we can see
    Total students ⇒ 135
    Successful students ⇒ 20 + 40 + 50 + 10 = 120

    ∴ Required percent =
    120
    		× 100
    35

    Required percent =
    800
    		= 88
    8
    		 %
    99

  1. The total number of students in the class is :








  1. View Hint View Answer Discuss in Forum

    From the given above histogram , we have
    Number of students in the class interval 25-30 = 15
    Number of students in the class interval 30-35 = 20
    Number of students in the class interval 35-40 = 40
    Number of students in the class interval 40-45 = 50
    Number of students in the class interval 45-50 = 10

    Correct Option: D

    From the given above histogram , we have
    Number of students in the class interval 25-30 = 15
    Number of students in the class interval 30-35 = 20
    Number of students in the class interval 35-40 = 40
    Number of students in the class interval 40-45 = 50
    Number of students in the class interval 45-50 = 10
    Total students in the class ⇒ 15 + 20 + 40 + 50 + 10 = 135

  1. If the pass marks in maths is 31, the number of students who failed in maths is :








  1. View Hint View Answer Discuss in Forum

    As per the given question , we can say that If the pass marks in maths is 31, the number of students who failed in maths class-interval 25–30 = 15

    Correct Option: B

    As per the given question , we can say that If the pass marks in maths is 31, the number of students who failed in maths class-interval 25–30 = 15
    Therefore , required answer is 15 .