Question

The dash of class interval is called its class mark

Answer 1

The dash of class interval is called its class mark

The class mark is an average of the lower limit and upper limit.

It is the mid - value of the class interval.

Class mark = (Upper limit + Lower limit) / 2

Consider, for example,  a class interval given by,

0 - 5

Upper limit  = 5

Lower limit = 0  

Class mark = (5 + 0) / 2 = 5/2 = 2.5

Answer 2

Answer:

mid value

Step-by-step explanation:

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