Answer :

The histogram for the above given frequency table is:

(i) The group earning Rs. 830-840 per week has the maximum number of workers

(ii) The workers who earn more than Rs 850 fall under the group of 850-860 or 860-870 or 870-880 or 880-890.

Therefore, there are total 10 workers who are earning Rs. 850 or more.

(iii) The workers who earn less than Rs 850 fall under the group of 800-810 or 810-820 or 820-830 or 830-840 or 840-850. Therefore, there are total20 workers who are earning less than Rs. 850.

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