Question

what is the difference between class size and class interval??​

Answer 1

Answer:

The difference between the upper limit and lower limit of a class interval is called the class size. The class size remains the same for all class intervals. The class interval in which the data can be grouped into class intervals such that all observations in that range belong to that class.

Step-by-step explanation:

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Answer 2

Class size is difference between the lower and upper class boundaries ( not class limits) of that particular class interval.

Given : Class size and class interval

To find : The difference between class size and class interval

Solution :

When the number of sample values are large in number and are in wide range, then the whole data is divided in a number of several groups according to the size of the sample. Each of these groups, made as above, is known as class interval

Class Length or Class Size or Class Width of the class interval of any class is defined to be the difference between the lower and upper class boundaries ( not class limits) of that particular class interval.

Class length = Upper Class boundary - Lower class boundary

Generally to prepare a grouped frequency table , the class size of each class is taken to be the same

For example , 0 - 15 , 15 - 30 , 30 - 45 , 45 - 60 are class intervals

Class size is 15

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