Question

A grouped frequency distribution table with classes of equal sizes using 63-72 (72 included) as one of the class is constructed for the following data: 30, 32, 45, 54, 74, 78, 108, 112, 66, 76, 88, 40, 14, 20, 15, 35, 44, 66, 75, 84, 95, 96, 102, 110, 88, 74, 112, 14, 34, 44. The number of classes in the distribution will be​

Answer 1

Step-by-step explanation:

If one the classes is 63−72 then the range of the class is 10 (72 included)

Range of the given data points =112−30=82

Number of classes =

10

82

=8.2

Classes required will be 9 after round off