Question

A grouped frequency distribution table with classes of equal sizes using 63-72 as one of the class is constructed (72 included) for the following data. 30, 32, 45, 54, 74, 108, 112, 66, 75, 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

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 =1082=8.2

Classes required will be 9 after round off.

Answer 2

Step-by-step explanation:

For solution refer to annexure