Question

A grouped frequency table with class intervals of equal sizes using 10 - 20 as one of the class interval is constructed for the following data : 39, 25, 5, 33, 19, 21, 12, 48, 13, 21, 9, 1, 10, 8, 12, 17, 19, 17, 41, 40, 12, 46, 37, 17, 27, 30, 6, 2, 23 & 19.The frequency of the class 20 - 30 is

Answer 1

Answer:

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