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Question

The class mark of class 90-130 is?


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Solution

Class mark:

The classmark is the mean of the lower limit and the upper limit of the class interval.

Classmark=lowerlimit+upperlimit2

โ‡’Class mark =90+1302

โ‡’Class mark=2202

โ‡’Class mark=110

Hence,class mark is 110


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