RS AGGARWAL CLASS 9 CHAPTER 17 BAR,GRAPH HISTOGRAM AND FREQUECNY POLYGON EXERCISE 17A

  EXERCISE 17A

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Question 1:

The following table shows the number of students participating in various games in a school.

Game	Cricket	Football	Basketball	Tennis
Number of students	27	36	18	12

Draw a bar graph to represent the above data.

Answer 1:

Question 2:

On a certain day, the temperature in a city was recorded as under:

Time	5 a. m.	8 a. m.	11 a. m.	3 p. m.	6 p. m.
Temperature (in °C)	20	24	26	22	18

Illustrate the data by a bar graph.

Answer 2:

Question 3:

The approximate velocities of some vehicles are given below:

Name of vehicle	Bicycle	Scooter	Car	Bus	Train
Velocity (in km/hr)	27	45	90	72	63

Draw a bar graph to represent the above data.

Answer 3:

Take the name of vehicle along the x-axis and the velocity along the y-axis.
 

Question 4:

The following table shows the favourite sports of 250 students of a school. Represent the data by a bar graph.

Sports	Cricket	Football	Tennis	Badminton	Swimming
No. of students	75	35	50	25	65

Answer 4:

Question 5:

Given below is a table which shows the yearwise strength of a school. Represent this data by a bar graph.

Year	2012−13	2013−14	2014−15	2015−16	2016−17
No. of students	800	975	1100	1400	1625

Answer 5:

Question 6:

The following table shows the number of scooters sold by a dealer during six consecutive years. Draw a bar graph to represent this data.

Year	2011	2012	2013	2014	2015	2016
Number of scooters sold (in thousands)	16	20	32	36	40	48

Answer 6:

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Question 7:

The air distances of four cities from Delhi (in km) are given below:

City	Kolkata	Mumbai	Chennai	Hyderabad
Distance from Delhi (in km)	1340	1100	1700	1220

Draw a bar graph to represent the above data.

Answer 7:

Question 8:

The birth rate per thousand in five countries over a period of time is shown below:

Country	China	India	Germany	UK	Sweden
Birth rate per thousand	42	35	14	28	21

Represent the above data by a bar graph.

Answer 8:

Question 9:

The following table shows the life expectancy (average age to which people live) in various countries in a particular year. Represent the data by a bar graph.

Country	Japan	India	Britain	Ethiopia	Cambodia	UK
Life expectancy (in years)	84	68	80	64	62	73

Answer 9:

Question 10:

Given below are the seats won by different political parties in the polling outcome of a state assembly elections:

Political party	A	B	C	D	E	F
Seats won	65	52	34	28	10	31

Draw a bar graph to represent the polling result.

Answer 10:

Question 11:

Various modes of transport used by 1850 students of a school are given below.

School bus	Private bus	Bicycle	Rickshaw	By foot
640	360	490	210	150

Draw a bar graph to represent the above data.

Answer 11:

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Question 12:

Look at the bar graph given below.

Read it carefully and answer the following questions.
(i) What information does the bar graph give?
(ii) In which subject is the student very good?
(iii) In which subject is he poor?
(iv) What is the average of his marks?

Answer 12:

(i) The bar graph shows the marks obtained by a student in various subjects in an examination.

(ii) The student scores very good in mathematics, as the height of the corresponding bar is the highest.

(iii) The student scores bad in Hindi, as the height of the corresponding bar is the lowest.

(iv) Average marks = $\frac{60+35+75+50+60}{5} = \frac{280}{5}= 56$