The marks obtained (out of 50) by 30 students in a class are :
28 ,31 ,45 , 3 , 5 , 18 , 35 , 46 , 49 , 17 ,10 , 28 , 31 , 36 , 40 , 44 , 47 ,13 , 19, 25, 24, 31, 38, 32, 27, 19, 25 , 28 , 48 ,15.
Construct a grouped frequency distribution table using class intervals
0- 10 ,10-20, 20-30 , 30- 40 , 40-50 for the given data.
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