The class mark of the class 70-90 is ........ | vedclass

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Question

(D) The class mark of a class interval is calculated using the formula: $	ext{Class mark} = \frac{	ext{Upper limit} + 	ext{Lower limit}}{2}$.Given

Vedclass · Accepted Answer

$80$

Vedclass · Answer

(D) The class mark of a class interval is calculated using the formula: $	ext{Class mark} = \frac{	ext{Upper limit} + 	ext{Lower limit}}{2}$.Given the class interval is $70-90$,the lower limit is $70$ and the upper limit is $90$.Substituting these values into the formula:$	ext{Class mark} = \frac{70 + 90}{2} = \frac{160}{2} = 80$.Therefore,the correct option is $D$.

The class mark of the class $70-90$ is ...........

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