The marks obtained out of 20 by 30 students of a class in a test are as follows:- 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 15, 16, 17, 141, 1o, 20. prepare a frequency, distribution table for the above data wing dass interval 4-8,8-12 etc.
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total 30 Students in the class test
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