NCERT Solutions for Class 7 Maths Exercise 3.3 Chapter 3 Data Handling

Simple solutions for NCERT Solutions for Class 7 Maths Exercise 3.3 Chapter 3 Data Handling  are given here in the post. This NCERT Solutions for Class 7 Maths Exercise 3.3 contains topics related to the raw data collection and its organisation. so we definitely want students of Class 7 to solve Class 7 Data Handling NCERT Exercise 3.3 to empower their basics and test the students capability of understanding the concepts. It also helps the students of CBSE Class 7 Maths students

Question 1
Use the bar graph (Fig 3.3) to answer the following questions.
(a) Which is the most popular pet? (b) How many students have dog as a pet?

Answer:

(a) Cat is the most popular pet. 

(b) 8 students have dog as a pet.

Question 2
Read the bar graph (Fig ) which shows the number of books sold by a bookstore during five consecutive years and answer the following questions:
(i) About how many books were sold in 1989? 1990? 1992?
(ii) In which year were about 475 books sold? About 225 books sold?
(iii) In which years were fewer than 250 books sold?
(iv) Can you explain how you would estimate the number of books sold in 1989?

Answer:

According to the given bar graph,

(i)  (a) In 1989, 180 books were sold. 

      (b) In 1990, 475 books were sold.

       (c) In 1992, 225 books were sold.

(ii) In 1990, about 475 books were sold and in 1992, about 225 books were sold.

(iii) In 1989 and 1992 fewer than 250 books were sold.

(iv) By reading the graph, we calculate that 180 books were sold in 1989.