How do we get class intervals when mid points are given? - Vidyadip

Question

How do we get class intervals when mid points are given?

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Answer

Following steps are taken:

Add mid values of two successive classes.
Divide it by 2.
It is upper limit of preceding class and lower limit of successive class.
Find the difference between mid values of two successive classes.
Deduct it from the upper limit obtained to get lower limits of the preceding class.
Repeat it for all classes if classes are unequal (if difference between different mid values is different) and if classes are equal (if difference between different mid values is equal) simply keep on adding the difference between two successive mid values to find the upper limits of different classes.

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