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The table gives the frequency of grades achieved by students in an IB school a Calculate the mean grade. b What percentage of students achieved

The table gives the frequency of grades achieved by students in an IB school

a Calculate the mean grade.

b What percentage of students achieved a grade 4 or 57.

c Write down the modal grade.

Grade	Frequency
1	1
2	6
3	19
4	34
5	32
6	18
7	10

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