RD Sharma Class 9 Solutions Chapter 23 Exercise 23.3: These solutions are created by our experts to provide you the best possible accurate solutions for you. They will be very beneficial for Class 9 board exams top score good marks in the first attempt. You can download RD Sharma Class 9 Solutions Chapter 23 Exercise 23.1 easily from the link provided below.
Download RD Sharma Class 9 Solutions Chapter 23 Exercise 23.3
RD Sharma Class 9 Solutions Chapter 23 Exercise 23.3
Access RD Sharma Class 9 Solutions Chapter 23 Exercise 23.3
Question 1.
Construct a histogram for the following data:
Solution:
Histogram is given below:
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.
Solution:
Histogram and frequency polygon is given here.
Draw midpoints Of each rectangle at the top and join them to get a frequency polygon.
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
Below is given the histogram
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:
Solution:
Question 5.
The following is the distribution of total household expenditure (in Rs.) of manual worker in a city:
Draw a histogram and a frequency polygon representing the above data.
Solution:
Here is given histogram and frequency polygon.
Question 6.
The following table gives the distribution of IQ’s (intelligence quotients) of 60 pupils of class V in a school:
Draw a frequency polygon for the above data.
Solution:
Now plot the (mid point, frequency) on the graph and join them to get a frequency polygon.
Question 7.
Draw a histogram for the daily earnings of 30 drug stores in the following table:
Solution:
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Hisotgram is given below:
Question 8.
The monthly profits (in t) of 100 shops are distributed as follows:
Draw a histogram for the data and show the frequency polygon for it.
Solution:
Histogram and frequency polygon is given below:
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FAQ: RD Sharma Class 9 Solutions Chapter 23 Exercise 23.3
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