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Find the clas...

Question

Find the class-mark of the class 35-40.

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Solution

Since, $\frac{35 + 40}{2} = 37.5$

So, the class-mark of the class 35-40 is 37.5

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Similar questions

Q. Find the class mark of the class

35 - 39

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Q. Find the class marks of classes 10−25 and 35−55.

Q. If the class marks of a frequency distribution are

20, 25, 30, 35, 40

45

, find the classes and their width.

Find the class marks of classes

30 - 35, 35 - 40

40 - 45

in the data below:

Marks	Number of student
$30 - 35$	$5$
$35 - 40$	$8$
$40 - 45$	$15$
$45 - 50$	$20$
$50 - 55$	$5$
$55 - 60$	$4$
$60 - 65$	$4$
$65 - 70$	$2$
$70 - 75$	$3$

Q. Find the class marks of classes 10−25 and 35−55. [CBSE 2008]

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