RD Sharma Class 9 Solutions Chapter 23 Graphical Representation of Statistical Data Ex 23.3

In this chapter, we provide RD Sharma Solutions for Chapter 23 Graphical Representation of Statistical Data Ex 23.3 for English medium students, Which will very helpful for every student in their exams. Students can download the latest RD Sharma Solutions for Chapter 23 Graphical Representation of Statistical Data Ex 23.3 Maths pdf, free RD Sharma Solutions for Chapter 23 Graphical Representation of Statistical Data Ex 23.3 Maths book pdf download. Now you will get step by step solution to each question.

TextbookNCERT
ClassClass 9
SubjectMaths
ChapterChapter 23
Chapter NameGraphical Representation of Statistical Data
ExerciseEx 23.3

RD Sharma Solutions for Class 9 Chapter 23 Graphical Representation of Statistical Data Ex 23.3

Question 1.
Construct a histogram for the following data:
Graphical Representation of Statistical Data Class 9 RD Sharma Solutions Ex 23.3
Solution:
RD Sharma Class 9 Solution Chapter 23 Graphical Representation of Statistical Data
Histogram is given below:
Class 9 RD Sharma Solutions Chapter 23 Graphical Representation of Statistical Data

Question 2.
The distribution of heights (in cm) of 96 children is given below. Construct a histogram and a frequency polygon on the same axes.
Class 9 Maths Chapter 23 Graphical Representation of Statistical Data RD Sharma Solutions
Solution:
RD Sharma Book Class 9 PDF Free Download Chapter 23 Graphical Representation of Statistical Data
Histogram and frequency polygon is given here.
Draw midpoints Of each rectangle at the top and join them to get a frequency polygon.
RD Sharma Class 9 Book Chapter 23 Graphical Representation of Statistical Data

Question 3.
The time taken, in seconds, to solve a problem by each of 25 pupils is as follows:
16, 20, 26, 27, 28, 30, 33, 37, 38, 40, 42, 43, 46, 46, 46, 48, 49, 50, 53, 58, 59, 60, 64, 52, 20
(a) Construct a frequency distribution for these data, using a class interval of 10 seconds.
(b) Draw a histogram to represent the frequency distribution.
Solution:
Lowest observation = 16,
Highest observation = 64
Graphical Representation of Statistical Data With Solutions PDF RD Sharma Class 9 Solutions
Below is given the histogram
RD Sharma Class 9 Maths Book Questions Chapter 23 Graphical Representation of Statistical Data

Question 4.
Draw, in the same diagram, a histogram and a frequency polygon to represent the following data which shows the monthly cost of living index of a city in a period of 2 years:
RD Sharma Mathematics Class 9 Solutions Chapter 23 Graphical Representation of Statistical Data
Solution:
RD Sharma Math Solution Class 9 Chapter 23 Graphical Representation of Statistical Data

Question 5.
The following is the distribution of total household expenditure (in Rs.) of manual worker in a city:
RD Sharma Class 9 Questions Chapter 23 Graphical Representation of Statistical Data
Draw a histogram and a frequency polygon representing the above data.
Solution:
Maths RD Sharma Class 9 Chapter 23 Graphical Representation of Statistical Data
Here is given histogram and frequency polygon.
RD Sharma Class 9 PDF Chapter 23 Graphical Representation of Statistical Data

Question 6.
The following table gives the distribution of IQ’s (intelligence quotients) of 60 pupils of class V in a school:
Graphical Representation of Statistical Data Class 9 RD Sharma Solutions
Draw a frequency polygon for the above data.
Solution:
RD Sharma Class 9 Solution Chapter 23 Graphical Representation of Statistical Data
Now plot the (mid point, frequency) on the graph and join them to get a frequency polygon.
Class 9 RD Sharma Solutions Chapter 23 Graphical Representation of Statistical Data

Question 7.
Draw a histogram for the daily earnings of 30 drug stores in the following table:
Class 9 Maths Chapter 23 Graphical Representation of Statistical Data RD Sharma Solutions
Solution:
RD Sharma Book Class 9 PDF Free Download Chapter 23 Graphical Representation of Statistical Data/>
Hisotgram is given below:
RD Sharma Class 9 Book Chapter 23 Graphical Representation of Statistical Data

Question 8.
The monthly profits (in t) of 100 shops are distributed as follows:
Graphical Representation of Statistical Data With Solutions PDF RD Sharma Class 9 Solutions
Draw a histogram for the data and show the frequency polygon for it.
Solution:
RD Sharma Class 9 Maths Book Questions Chapter 23 Graphical Representation of Statistical Data
Histogram and frequency polygon is given below:
RD Sharma Mathematics Class 9 Solutions Chapter 23 Graphical Representation of Statistical Data

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