1.

The class marks in a frequency table are given to be 5, 10, 15, 20, 25, 30, 35, 40, 45, 50. The class limits of the first five classes are

A. 3-7, 7-13, 13-17, 17-23, 23-27
B. 2.5-7.5, 7.5-12.5, 12.5-17.5, 17.5-22.5, 22.5-27.5
C. 1.5-8.5, 8.5-11.5, 11.5-18.5, 18.5-21.5, 21.5-28.5
D. 2-8, 8-12, 12-18, 18-22, 22-28
Answer» C. 1.5-8.5, 8.5-11.5, 11.5-18.5, 18.5-21.5, 21.5-28.5


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