English

For the following data, draw a pie graph. - Mathematics

Advertisements
Advertisements

Question

For the following data, draw a pie graph.

Subject Hindi English Maths Science Social Study
Marks as percent 60 45 42 48 75
Chart
Sum

Solution

∵ 60 + 45 + 42 + 48 + 75 = 270

∴ Central angle for Hindi = `60/270 xx 360^circ = 80^circ`

Central angle for English = `45/270 xx 360^circ = 60^circ`

Central angle for Maths = `42/270 xx 360^circ = 56^circ`

Central angle for Science = `48/270 xx 360^circ = 64^circ`

and Central angle for Social study =`75/270 xx 360^circ = 100^circ`

shaalaa.com
  Is there an error in this question or solution?
Chapter 22: Data Handling - Exercise 22 (B) [Page 253]

APPEARS IN

Selina Concise Mathematics [English] Class 8 ICSE
Chapter 22 Data Handling
Exercise 22 (B) | Q 8 | Page 253

RELATED QUESTIONS

The runs scored by two teams A and B on the first 60 balls in a cricket match are given below:

Number of balls Team A Team B
1 - 6 2 5
7 - 12 1 6
13 - 18 8 2
19 - 24 9 10
25 - 30 4 5
31 - 36 5 6
37 - 42 6 3
43 - 48 10 4
49 - 54 6 8
55 - 60 2 10

Represent the data of both the teams on the same graph by frequency polygons.

[Hint: First make the class intervals continuous.]


A random survey of the number of children of various age groups playing in a park was found as follows:

Age (in years) Number of children
1 - 2 5
2 - 3 3
3 - 5 6
5 - 7 12
7 - 10 9
10 - 15 10
15 - 17 4

Draw a histogram to represent the data above.


Read the following bar graph (Fig. 23.12) and answer the following questions:
(i) What is the information given by the bar graph?
(ii) State each of the following whether true or false.
a. The number of government companies in 1957 is that of 1982 is 1 :9.
b. The number of government companies have decreased over the year 1957 to 1983.


The following bar graph (Fig. 23. 1 4) represents the heights (in cm) of 50 students of Class XI of a particular school. Study the graph and answer the following questions:

(i) What percentage of the total number of students have their heights more than 149cm?
(ii) How many students in the class are in the range of maximum height of the class?
(iii) The school wants to provide a particular type of tonic to each student below the height
of 150 cm to improve his height. If the cost of the tonic for each student comes out to be Rs. 55, how much amount of money is required?
(iv) How many students are in the range of shortest height of the class?
(v) State whether true or false:
a. There are 9 students in the class whose heights are in the range of 155 - 159 cm.
b. Maximum height (in cm) of a student in the class is 17.
c. There are 29 students in the class whose heights are in the range of 145- 154 cm.
d. Minimum height (in cm) of a student is the class is in the range of 140 – 144 cms.
e. The number of students in the class having their heights less than 150 cm is 12.
f. There are 14 students each of whom has height more than 154. cm.


The production of saleable steel in some of the steel plants our country during 1999 is given below:

Plant Bhilai Durgapur Rourkela Bokaro
Production
(In thousand tonnes)
160 80 200 150


Construct a bar graph to represent the above data on a graph paper by using the scale 1 big divisions = 20 thousand tonnes.


The investment (in ten crores of rupees) of Life Insurance Corporation of India in different sectors are given below:

Sectors Investment
(in ten crores of rupees)
Central Government Securities
State Government Securities
Securities guaranteed by the Government
Private Sectors
Socially oriented sectors (Plans)
Socially oriented sectors (Non-Plan)
45
11
23
18
46
11

Represent the above data with the help of bar graph.


Draw frequency polygons for each of the following frequency distribution: 

(a) using histogram

(b) without using histogram

C.I

10 - 30

30 - 50

50 - 70 70 - 90 90 - 110 110 - 130 130 - 150
ƒ  4 7 5 9 5 6 4

The following tables show the mode of transport used by boys and girls for going to the same school.

  Bus Bicycle Walking Other sources

Number of boys

80 60 20 85

Number of girls

90 75 35 60

Draw a double bar graph representing the above data.


The frequency distribution has been represented graphically as follows:

Marks 0 – 20  20 – 40 40 – 60 60 – 100
Number of Students 10 15 20 25


Do you think this representation is correct? Why?


The following table gives the frequencies of most commonly used letters a, e, i, o, r, t, u from a page of a book:

Letters a e i o r t u
Frequency 75 125 80 70 80 95 75

Represent the information above by a bar graph.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×