The class mark of the class interval $120 - 130$ is:

120

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130

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122.5

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125

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Solution

The correct option is D $125$
Formula used: Class mark = $\frac{U p p e r L i m i t + L o w e r L i m i t}{2}$

In the given case, Upper limit = 130
and Lower limit = 120

$⟹ C l a s s m a r k = \frac{130 + 120}{2} = \frac{250}{2}$
$Class mark =125$ Ans.

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Similar questions

Q. The classes are given as:
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Find the class width.

Find the median of the following data.

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Q. The class-mark of the class 130-150 is ___________.

Q. The class mark of the class 130−150 is
(a) 130
(b) 135
(c) 140
(d) 145

Q. Find the class - mark of the class

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The class mark of the class interval 120−130 is:

The correct option is D 125Formula used: Class mark =UpperLimit+LowerLimit2In the given case, Upper limit = 130and Lower limit = 120⟹Classmark=130+1202=2502Class mark =125 Ans.

The class mark of the class interval $120 - 130$ is:

The correct option is D $125$
Formula used: Class mark = $\frac{U p p e r L i m i t + L o w e r L i m i t}{2}$

In the given case, Upper limit = 130
and Lower limit = 120

$⟹ C l a s s m a r k = \frac{130 + 120}{2} = \frac{250}{2}$
$Class mark =125$ Ans.