A boy scored the following marks in various class tests during a year, each test being marked out of 20. 15, 17, 16, 7, 9, 12, 14, 16, 3, 19, 12, 16 (a) What are his mean marks (b) What is the range of the data (c) Find the mode
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Answer:
176/13 (176 by 13 )
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