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Draw a Histogram for the Frequency Table Made for the Data in Question 3 and Answer the Following Questions Which Group Has the Maximum Number of Workers?How Many Workers Earn Rs 850 and More? How Many Workers Earn Less than Rs 850? - Mathematics

Draw a histogram for the frequency table made for the data in Question 3 and answer the following questions.

(1) Which group has the maximum number of workers?

(2) How many workers earn Rs 850 and more?

(3) How many workers earn less than Rs 850?

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Solution

A histogram for the above frequency distribution table is as follows.

1) 830 − 840 is the group which has the maximum number of workers.

2) The workers who earn more than Rs 850 are the number of workers who fall in the group of 850 − 860 or 860 − 870 or 870 − 880 or 880 − 890. Hence, the total number of workers earning more than 850 will be the sum of the numbers of all these workers i.e., 1 + 3 + 1 + 1 + 4 = 10

3) The workers who earn less than Rs 850 are the number of workers who fall in the group of 800 − 810 or 810 − 820 or 820 − 830 or 830 − 840 or 840 − 850. Hence, the total number of workers earning less than 850 will be the sum of the numbers of all these workers i.e., 3 + 2 + 1 + 9 + 5 = 20

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APPEARS IN

NCERT Class 8 Maths Textbook
Chapter 5 Data Handling
Exercise 5.1 | Q 4 | Page 76
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