Draw a histogram for the frequency distribution table given in Example 13 and answer the following questions.
(i) Which class interval has the maximum number of workers?
(ii) How many workers earn Rs. 850 and more?
(iii) How many workers earn less than Rs. 850?
(iv) How many workers earn Rs. 820 or more but less than Rs. 880?

Solution:

The histogram can be drawn as below

(i) Which class interval has the maximum number of workers?

From the bar graph, the class interval 830 to 840 has the maximum number of workers

(ii) How many workers earn Rs. 850 and more?

At 850, we have 5, at more than 850 we have 1 + 3 + 1 + 1 + 4 = 10

Therefore, 10 workers earn Rs. 850 and more.

(iii) How many workers earn less than Rs. 850?

Workers earn less than Rs. 850 are 5+9+1+2+3=20

There are 15 workers earning less than Rs. 850

(iv) How many workers earn Rs. 820 or more but less than Rs. 880?

Workers earning between Rs.820 or more and Rs. 880 are1+ 9 + 5+ 1+3+ 1= 20

✦ Try This: Draw a histogram for the frequency distribution table given in Example 13 and answer the following questions.

(i) Which class interval has the minimum number of workers?

(ii) How many workers earn Rs. 830 and more?

(iii) How many workers earn less than Rs. 870?

(iv) How many workers earn Rs. 840 or more but less than Rs. 880?

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 5

NCERT Exemplar Class 8 Maths Chapter 2 Sample Problem 16

Draw a histogram for the frequency distribution table given in Example 13 and answer the following questions. (i) Which class interval has the maximum number of workers, (ii) How many workers earn Rs. 850 and more, (iii) How many workers earn less than Rs. 850, (iv) How many workers earn Rs. 820 or more but less than Rs. 880

Summary:

The histogram for the frequency distribution table given in Example 13 is drawn and (i) 830-840 class interval has the maximum number of workers, (ii) 10 workers earn Rs. 850 and more, (iii) 20 workers earn less than Rs. 850, (iv) 20 workers earn Rs. 820 or more but less than Rs. 880

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