NCERT Solutions for Class 7 Maths Chapter 3 Data and Handling In everyday life, we deal with various types of data. Basically, data is the collection of information in the raw or an unorganized form such as numbers, alphabets or symbols that represent objects, ideas or conditions. In this chapter, we will learn how to represent and organize data in different ways so that their interpretation and analysis becomes better. This chapter contains 4 exercises with 23 questions. The NCERT Solutions for Class 7 Maths Chapter 3 Data and Handling are created by maths experts to help students in their preparation of CBSE final examination. These NCERT solutions are the detailed solution of each problem of NCERT Maths textbook of class 7.
We have learned to collect data and put it in the form of bar graphs. The collection and presentation of data help us organize our experiences and make conclusions from them. In NCERT Class 7 Maths Chapter 3 Data and Handling, we will take one more step towards figuring out how to do this. We will come across some more types of data and graphs. We have seen several kinds of data through magazines, television, newspapers, etc. And we know that all data give us some kind of information. The example of data that we have seen in daily life temperatures of cities on a particular day, weekly absentees in a class, etc. In Chapter 3 Data and Handling, students will also learn some important terms like arithmetic mean, range, mode, and median. So let's discuss terms one by one
3.1 Introduction
3.2 Collecting Data
3.3 Organisation of Data
3.4 Representative Values
3.5 Arithmetic Mean
3.5.1 Range
3.6 Mode
3.6.1 Mode of Large Data
3.7 Median
3.8 Use of Bar Graphs withe a Different Purpose
3.8.1 Choosing a Scale
3.9 Chance and Probability
3.9.1 Chance
The complete Solutions of NCERT Class 7 Mathematics Chapter 3 is provided below:
Chapter No. 
Chapter Name 
Chapter 1 

Chapter 2 

Chapter 4 

Chapter 5 

Chapter 6 

Chapter 7 

Chapter 8 

Chapter 9 

Chapter 10 

Chapter 11 

Chapter 12 

Chapter 13 

Chapter 14 
3. Find the mean of the first five whole numbers.
3. Number of children in six different classes are given below. Represent the data on a bar graph.
(a) How would you choose a scale?
(b) Answer the following questions:
(i) Which class has the maximum number of children? And the minimum?
(ii) Find the ratio of students of class sixth to the students of class eight.
6. Take the data giving the minimum and the maximum temperature of various cities given in the beginning of this Chapter (Table 3.1). Plot a double bar graph using the data and answer the following:
(i) Which city has the largest difference in the minimum and maximum temperature on the given date?
(ii) Which is the hottest city and which is the coldest city?
(iii) Name two cities where maximum temperature of one was less than the minimum temperature of the other.
(iv) Name the city which has the least difference between its minimum and the maximum temperature.