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RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise

March 25, 2019 by Fazal Leave a Comment

RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise is part of RBSE Solutions for Class 8 Maths. Here we have given Rajasthan Board RBSE Class 8 Maths Chapter 16 Data Handling In Text Exercise.

 

Board RBSE
Textbook SIERT, Rajasthan
Class Class 8
Subject Maths
Chapter Chapter 16
Chapter Name Data Handling
Exercise In Text Exercise
Number of Questions 12
Category RBSE Solutions

Rajasthan Board RBSE Class 8 Maths Chapter 16 Data Handling In Text Exercise

Page No: 193

Question 1.
From given bar graph answer the following questions by looking at number of books on different-different subjects in library
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-1
Width of Bars are same and equal distances are kept between two consecutive bars.
Here, Length of bar represents- number of corresponding data
(i) Which subject has maximum number of books and how many?
(ii) Which subject has least number of books and how many?
(iii) How many(RBSESolutions.com)books are there in the library?
(iv) What information has been given by this bar graph?
(v) Difference in the number of books of which two subjects is minimum?
Solution:
(i) Hindi, 450
(ii) Social Science, 100
(iii) Total books = 150 + 300 + 350 + 450 + 100 = 1350
(iv) This bar graph represents the number of books of each subject in the library.
(v) Subjects Maths and Science (350 – 300 = 50) and English and Social Science (150 – 100 = 50) have the minimum difference of books.

Page No: 193-194

RBSE Solutions

Question 2.
A double bar graph is given on marks obtained by 5 students in yearly and half yearly exam in mathematics subject.
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-2
Answer the following questions on basis of graph
(i) Whose performance was similar in annual and half yearly examination?
(ii) Whose performance was better in annual as compared to half yearly?
(iii) How many students(RBSESolutions.com)scored more than 50 in annual examination?
(iv) Which information is given in this double bar graph?
(v) What is the average of marks of half yearly? Is that less than average of annual examination?
Solution
(i) Vibha
(ii) Chayan
(iii) 3 students
(iv) The double bar graph gives the marks of 5 students obtained in Mathematics in half-yearly and yearly exam.
(v) Average of marks in half-yearly exam.
= \(\frac { 50+40+60+40+80 }{ 5 }\)
= \(\frac { 270 }{ 5 }\)
= 54
Average of marks in yearly exam..
= \(\frac { 55+40+85+50+70 }{ 5 }\)
= \(\frac { 300 }{ 5 }\)
= 60
Yes, average marks obtained in half-yearly exam is less than yearly exam.

Page No: 194

RBSE Solutions

Draw different graphs to show given information
Question 3.
(i)
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-3
Solution
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-4

(ii)
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-5
Solution
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-6

Page No: 197

RBSE Solutions

Question 4.
Study the following frequency distribution table given below and answer the following questions
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-7
(i) What is measure of class interval?
(ii) Which is upper limit of class interval 300-350?
(iii) Frequency(RBSESolutions.com)of which group is maximum?
(iv) Frequency of which two groups is same?
Solution
(i) Class size = 150 – 100 = 50
(ii) 350
(iii) 300-350
(iv) 100-150 and 400-450

Question 5.
Marks obtained by 40 students in science out of 50 marks is as follows
38, 35, 44, 30, 30, 33, 38, 40, 35, 45, 48,
40, 35, 45, 38, 35, 44, 33, 40, 42, 45, 38,
35, 33, 34, 37, 47, 49, 37, 47, 40, 31, 38,
43, 31, 37, 41, 38, 45, 40
(i) Make a frequency distribution table of given data taking interval 30-35, 35-40 etc
(ii) What are the(RBSESolutions.com)class limits of class interval 35-40?
(iii) What is class measure of, class interval?
Solution
(i) Frequency Table
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-8
(ii) Upper limit of 35 – 40 = 40 and lower limit – 35
(iii) Class size = 35 – 30 = 5

Page No: 198

RBSE Solutions

Question 6.
Given below is a histogram between number of families and their expenditure (graph 16.5). From this histogram 16.5 we can tell
(i) How many families have minimum expenditure?
(ii) How many(RBSESolutions.com)families have maximum expenditure?
(iii) How many families have their expenditure less than Rs. 4000?
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-9
Solution
(i) 10 families.
(ii) 80 families.
(iii) 130 families (= 10 + 30 + 50 + 40).

Page No: 203

RBSE Solutions

Question 7.
Sweets liked by students of a school is given below
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-10
Draw a pie-chart on the basis of data.
Solution
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-11

Question 8.
Write down number of members in families of your 5 friends and show it by pie chart
Solution:
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-12

Page No: 207

RBSE Solutions

Question 9.
Fill in the blanks
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-13
Solution:
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-14

Page No: 208

RBSE Solutions

Question 10.
When a dice is thrown, what are the possible 6 events?
Solution:
When a dice is thrown, the 6 possible outcomes are 1, 2, 3, 4, 5, 6.

Question 11.
What will be the possible results, when you rotate a wheel? From a list.
(Here result means(RBSESolutions.com)sector at which pointer stops after rotating).
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-15
Solution:
The possible results will be P, Q, R and S.

RBSE Solutions

Question 12.
You have a bag and there are similar balls having different colors. You can draw a ball without looking at this. Write the results obtained.
RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise img-16
Solution:
Results are – P,Q,R,S,T,U and V

We hope the given RBSE Solutions for Class 8 Maths Chapter 16 Data Handling In Text Exercise will help you. If you have any query regarding Rajasthan Board RBSE Class 8 Maths Chapter 16 Data Handling In Text Exercise, drop a comment below and we will get back to you at the earliest.

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