The weekly wages (in Rs.) of 30 workers in a factory are give: 830,835,890,810,835,836,869,845,898,890, 820,860,832,833,855,845,804,808,812,,840,885,835,835,836,878,840,868,890,806,840 Mark a frequency table with intervals as 800-810, 810-820 and so on, using tally marks. Also, draw a histogram 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?