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

These Solutions are part of RD Sharma Class 9 Solutions. Here we have given RD Sharma Class 9 Solutions Chapter 23 Graphical Representation of Statistical Data Ex 23.3

**Other Exercises**

- RD Sharma Class 9 Solutions Chapter 23 Graphical Representation of Statistical Data Ex 23.1
- RD Sharma Class 9 Solutions Chapter 23 Graphical Representation of Statistical Data Ex 23.2
- RD Sharma Class 9 Solutions Chapter 23 Graphical Representation of Statistical Data Ex 23.3
- RD Sharma Class 9 Solutions Chapter 23 Graphical Representation of Statistical Data MCQS

**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:**

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:

Hope given RD Sharma Class 9 Solutions Chapter 23 Graphical Representation of Statistical Data Ex 23.3 are helpful to complete your math homework.

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