Question

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

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

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

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

Answer 1

Answers:-

(i) Since the bar 830-840 is the highest, therefore it has the maximum number of workers.

_____________________

(ii) Number of workers earning Rs. 850 and more

So,

Number of workers warning Rs. 850-Rs.860 + Number of workers warning Rs. 860-Rs.870 + Number of workers warning Rs. 870-Rs.880 + Number of workers warning Rs. 880-Rs.890 + Number of workers warning Rs. 890-Rs.900

= 1 + 3 + 1 + 1 + 4

= 10 workers

_____________________

(iii) Number of workers earning less than 850 or more

So,

Number of workers earning Rs. 800 - Rs. 810 + Number of workers warning Rs. 810-Rs.820 + Number of workers warning Rs. 820-Rs.830 + Number of workers warning Rs. 830-Rs.840 + Number of workers warning Rs. 840-Rs.850

= 3 + 2 + 1 + 9 + 5

= 20 workers

Answer 2

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1. The group earning Rs. 830-840 per week is having the most number of workers.
2. 10 workers are earning Rs. 850 or more.
3. 20 workers are earning less than Rs. 850.