Draw a bar graph to represent the following information. Years 1993 1994 1995 1996 1997 Number of computers sold by a dealer (in thousand) 25 20 30 25 40

Given, Years 1993 1994 1995 1996 1997 Number of computers sold by a dealer (in thousand) 25 20 30 25 40 We can draw the bar graph by following the given steps: Step 1 : On a graph paper, draw a horizontal line O X as X - axis and vertical line O Y as Y - axis. Step 2 : Choose the scale: Along X - axis, width of each bar = 1 cm . Along Y - axis, 1 cm = 5 units Step 3 : Write the years on x -axis. Write the number of computers sold by a dealer (in thousand) on y -axis. Step 4 : Now draw the graph as per the data given in the table. Hence, the required bar graph as shown above.

Draw a bar graph to represent the following information. Items Rent Food Education Clothing Miscellaneous Monthly expenditure of a family(in percentage) 25 % 30 % 20 % 20 % 5 %

Given, Items Rent Food Education Clothing Miscellaneous Monthly expenditure of a family(in percentage) 25 % 30 % 20 % 20 % 5 % We can draw the bar graph by following the given steps: Step 1 : On a graph paper, draw a horizontal line O X as X - axis and vertical line O Y as Y - axis. Step 2 : Choose the scale: Along X - axis, width of each bar = 1 cm . Along Y - axis, 1 cm = 5 units Step 3 : Write the items on x -axis. Write the monthly expenditure of a family (in percentage) on y -axis. Step 4 : Now draw the graph as per the data given in the table. Hence, the required bar graph as shown above.

E M B I B E

Excellence in Mathematics>Chapter 13 - Data Handling>ASSIGNMENT 13.3>Q 1

MEDIUM

7th CBSE

IMPORTANT

Earn 100

From the following table which shows marks obtained by $50$ students in a maths class test, draw a bar graph.

Marks $4$ $5$ $6$ $7$ $8$ $9$ $10$

Number of students $3$ $5$ $8$ $12$ $10$ $9$ $3$

Important Questions on Data Handling

MEDIUM

7th CBSE

IMPORTANT

Excellence in Mathematics>Chapter 13 - Data Handling>ASSIGNMENT 13.3>Q 1

Draw a bar graph to represent the following information.

Years	$1993$	$1994$	$1995$	$1996$	$1997$
Number of computers sold by a dealer (in thousand)	$25$	$20$	$30$	$25$	$40$

MEDIUM

7th CBSE

IMPORTANT

Excellence in Mathematics>Chapter 13 - Data Handling>ASSIGNMENT 13.3>Q 1

Draw a bar graph to represent the following information.

Items	Rent	Food	Education	Clothing	Miscellaneous
Monthly expenditure of a family(in percentage)	$25 %$	$30 %$	$20 %$	$20 %$	$5 %$

EASY

7th CBSE

IMPORTANT

Excellence in Mathematics>Chapter 13 - Data Handling>CHAPTER-END EXERCISES>Q 1

The table given below is the distribution of marks of $40$ students in a class.

Class	$0 - 5$	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$	$30 - 35$	$35 - 40$
Number of students	$4$	$3$	$1$	$6$	$10$	$5$	$8$	$3$

The class-size of the given distribution is

EASY

7th CBSE

IMPORTANT

Excellence in Mathematics>Chapter 13 - Data Handling>CHAPTER-END EXERCISES>Q 2

Class	$0 - 5$	$5 - 10$	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$	$30 - 35$	$35 - 40$
Number of students	$4$	$3$	$1$	$6$	$10$	$5$	$8$	$3$

From the given distribution, the class-mark of $6^{th}$ class is

EASY

7th CBSE

IMPORTANT

Excellence in Mathematics>Chapter 13 - Data Handling>CHAPTER-END EXERCISES>Q 3

The mean of the first five whole numbers is

MEDIUM

7th CBSE

IMPORTANT

Excellence in Mathematics>Chapter 13 - Data Handling>CHAPTER-END EXERCISES>Q 4

The median of a distribution

28, 24, 32, 22, 28, 25, 36, 22, 40, 22

,is

HARD

7th CBSE

IMPORTANT

Excellence in Mathematics>Chapter 13 - Data Handling>CHAPTER-END EXERCISES>Q 5

Three students are asked to find the median of the $3$ -digit numbers so formed by using digits $2, 5, 3$ (each digit is to be used once only). Their answers are as follows:

Student $I . 362$ , Student $II . 334.5$ Student $III . 338.5$