If the class marks in a grouped frequency distribution of weights
of students are 75, 84, 93, 102, 111, 120 and 129.
Find
A)Width of the class or size of the Class Interval.
B)The class limits [Inclusive series]
Class boundaries [Exclusive series]
Dear student,
Width of class interval or class size = 9
Regards
Class interval | 70.5 - 79.5 | 79.5 - 88.5 | 88.5 - 97.5 | 97.5 - 106.5 | 106.5 - 115.5 | 115.5 - 124.5 | 124.5 - 133.5 |
Class mark | 75 | 84 | 93 | 102 | 111 | 120 | 129 |
Width of class interval or class size = 9
Regards