Find the class mark for the class interval '5 - 10'.

6.5

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4.5

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5.5

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7.5

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Solution

The correct option is D 7.5
Class Mark = $\frac{L o w e r c l a s s l i m i t + U p p e r c l a s s l i m i t}{2}$

Here,
Lower class limit = 5
Upper class limit = 10

Class Mark = $\frac{5 + 10}{2}$
= 7.5

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Find the class mark for the class interval '5 - 10'.

The correct option is D 7.5Class Mark = Lower class limit+Upper class limit2 Here, Lower class limit = 5 Upper class limit = 10 Class Mark = 5+102 = 7.5

The correct option is D 7.5
Class Mark = $\frac{L o w e r c l a s s l i m i t + U p p e r c l a s s l i m i t}{2}$

Here,
Lower class limit = 5
Upper class limit = 10

Class Mark = $\frac{5 + 10}{2}$
= 7.5