Q1 of 47 Page 86

Obtain the A.M of the following data:

GIVEN:


FORMULA USED: Arithmetic mean =


Let Marks of student be x


And number of students be frequency f



∑f = 6 + 11 + 3 + 5 + 4 + 7 + 10 + 4


= 50


∑xf = 390 + 770 + 225 + 400 + 340 + 630 + 950 + 400


= 4105


Arithmetic mean =


Arithmetic mean = = 82.1


CONCLUSION: Mean marks of given data is 82.1


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