# Class Size

Here we will learn class size.

The class size of an overlapping or nonoverlapping class interval

= Actual upper limit – Actual lower limit

= Difference of class boundaries.

For example: The class size of the overlapping interval 10 - 20

= Actual upper limit – Actual lower limit

= 20 – 10

= 10.

The class size of the nonoverlapping class interval 1 – 10  (when the intervals are 1 – 10, 11 – 20, 21 – 30, etc.)

= Actual upper limit – Actual lower limit

= 10.5 – 0.5

= 10.

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