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The table shows the children in a class, sorted according to the marks they got for a math test.

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The table shows the children in a class, sorted according to the marks they got for a math test.

Marks Children
2 1
3 2
4 5
5 4
6 6
7 11
8 10
9 4
10 2

Calculate the average marks of the class.

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Total number of children is 45. Repeated addition can be written as multiplication.

Average mark = \(\frac{Total}{Number}=\frac{297}{45}=6.6\)

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