Skip to main content

Selina Concise Mathematics Class 8 ICSE Solutions Chapter 22 Data Handling

Selina Concise Mathematics Class 8 ICSE Solutions Chapter 22 Data Handling

Selina Publishers Concise Mathematics Class 8 ICSE Solutions Chapter 22 Data Handling

Data Handling Exercise 22A – Selina Concise Mathematics Class 8 ICSE Solutions

Question 1.
Arrange the following data as an array (in ascending order):
(i) 7, 5, 15, 12, 10, 11, 16
(ii) 6.3, 5.9, 9.8, 12.3, 5.6, 4.7

Solution:
(i) Ascending order = 5, 7, 10, 11, 12, 15, 16
(ii) Ascending order = 4.7, 5.6, 5.9, 6.3, 9.8, 12.3

Question 2.
Arrange the following data as an array (descending order):
(i) 0 2, 0, 3, 4, 1, 2, 3, 5
(ii) 9.1, 3.7, 5.6, 8.3, 11.5, 10.6

Solution:
(i) Descending order = 5, 4, 3, 3, 2, 2, 1, 0
(ii) Descending order = 11.5, 10.6, 9.1, 8.3, 5.6, 3.7

Question 3.
Construct a frequency table for the following data:
(i) 6, 7, 5, 6, 8, 9, 5, 5, 6, 7, 8, 9, 8, 10, 10, 9, 8, 10, 5, 7, 6, 8.
(ii) 3, 2, 1, 5, 4, 3, 2, 5, 5, 4, 2, 2, 2, 1, 4, 1, 5, 4.

Solution:
(i)

(ii)

Question 4.
Following are the marks obtained by 30 students in an examinations.

Taking class intervals 0-10, 10-20, ……… 40-50 ; construct a frequency table.

Solution:

Question 5.
Construct a frequency distribution table for the following data ; taking class-intervals 4-6, 6-8, ……… 14-16.

Solution:

Question 6.
Fill in the blanks:
(i) Lower class limit of 15-18 is ………
(ii) Upper class limit of 24-30 is ……..
(iii) Upper limit of 5-12.5 is ………
(iv) If the upper and the lower limits of a class interval are 16 and 10 ; the class-interval is ……..
(v) If the lower and the upper limits of a class interval are 7.5 and 12.5 ; the class interval is ……..

Solution:
(i) Lower class limit of 15 – 18 is 15.
(ii) Upper class limit of 24 – 30 is 30.
(iii) Upper limit of 5 – 12.5 is 12.5
(iv) If the upper and lower limits of a class interval are 16 and 10 ; the class interval is 10 – 16
(v) If the lower and upper limits of a class interval are 7.5 and 12.5 ; the class interval is 7.5 – 12.5

Data Handling Exercise 22B – Selina Concise Mathematics Class 8 ICSE Solutions

Question 1.
Hundred students from a certain locality use different modes of travelling to school as given below. Draw a bar graph.

Solution:

Question 2.
Mr. Mirza’s monthly income is Rs. 7,200. He spends Rs. 1,800 on rent, Rs. 2,700 on food, Rs. 900 on education of his children ; Rs. 1,200 on Other things and saves the rest.
Draw a pie-chart to represent it.

Solution:


Question 3.
The percentage of marks obtained, in different subjects by Ashok Sharma (in an examination) are given below. Draw a bar graph to represent it.

Solution:

Question 4.
The following table shows the market position of different brand of tea-leaves.

Draw it-pie-chart to represent the above information.

Solution:

Question 5.
Students of a small school use different modes of travel to school as shown below:

Draw a suitable bar graph.

Solution:

Question 6.
For the following table, draw a bar-graph

Solution:

Question 7.
Manoj appeared for ICSE examination 2018 and secured percentage of marks as shown in the following table:

Represent the above data by drawing a suitable bar graph.

Solution:

Question 8.
For the data given above in question number 7, draw a suitable pie-graph.

Solution:
∵ 60 + 45 + 42 + 48 + 75 = 270

Question 9.
Mr. Kapoor compares the prices (in Rs.) of different items at two different shops A and B. Examine the following table carefully and represent the data by a double bar graph.

Solution:

Question 10.
The following tables shows the mode of transport used by boys and girls for going to the same school.

Draw a double bar graph representing the above data.
Solution:



Comments

Popular posts from this blog

ICSE Solutions for Class 9 Geography – Natural Regions of the World

ICSE Solutions for Class 9 Geography – Natural Regions of the World ICSE Solutions for Class 9 Geography – Natural Regions of the World Exercises I. Short Answer Questions. Question 1. Define the term ‘natural region’. Answer: A natural region refers to a part of Earth’s surface having a particular uniformity in physical and climatic elements. Question 2. Name any four natural regions of the world. Answer: Equatorial Region, Tropical Grasslands (Savanah), Tropical Monsoon type and Tropical Deserts. Question 3. Briefly state the importance of climate. Answer: Climate imparts an important effect on human life, as the life style, occupations, trade facilities all are deeply related to the climatic behaviour of a particular natural region. Climate has a remarkable impact on human efficiency too. Question 4. State the location of the Equatorial Region. Answer: It is found in Amazon basic, Congo basin and Indonesia etc. Question 5. What is the latitudinal extent of the Monsoon climate? Answe...

ICSE Solutions for Class 9 History and Civics – India in the 6th Century BC: Rise of Jainism and Buddhism

ICSE Solutions for Class 9 History and Civics – India in the 6th Century BC: Rise of Jainism and Buddhism ICSE Solutions for Class 9 History and Civics – India in the 6th Century BC: Rise of Jainism and Buddhism EXERCISES Question 1. Give any two sources to reconstruct the two great religious movements—Jainism and the Buddhism. Answer: Literary Sources: The Jataka Tales, The Tripitakas.  Archaeological Sources: The Great Stupa at Sanchi, Samath Pillar. Question 2. Mention two causes which favored the rise of Jainism and Buddhism in the 6th Century BC. Answer: Two causes which favored the rise of Jainism and Buddhism in the 6th Century BC. were: Ritualistic Vedic Religion. Expensive Sacrifices. Question 3. Name the first and the last two Jain Answer: The first Tirthankaras was ‘Risabit known as Adi Nath. The last two Tirathankaras were ‘Parashvanath’ and ‘Mahavira’. Question 4. What was the Original name of Mahavira? Answer: The Original name of Mahavira was Vardhamana. Question...

ICSE Solutions for Class 8 History and Civics – The Growth of Nationalism

TIME TO LEARN I. Fill in the blanks: The Congress of Vienna was hosted by The Austrian Chancellor Duke Metternich . The American Revolution began in 1776. The first clear expression of nationalism came up with the French Revolution. The French Revolution began in 1789. England had Thirteen colonies in North America. American thinker Thomas Jefferson , asked the people to rebel against the tyrannical rule of England . A new country called The United States of America was born after the American Revolution. II. Match the contents of Column A and Column B: Answer:  III. State whether the following statements are true or false: The 13 colonies of North America were dissatisfied with the rule of the master country, England. (True) The French society was divided into three classes, each enjoying similar rights and privileges. (False)   The French Revolution began with the storming of Bastille in 1789. (True) A new constitution was framed by the French Assembly in 1785. (False) ...