Q1 of 47 Page 86

The following table shows the weights of12 workers in a factory


Find the mean weight of the workers.

GIVEN:


FORMULA USED: Arithmetic mean =


Let Weight of workers be x


And number of workers be frequency f



∑f = 3 + 4 + 2 + 2 + 1


= 12


∑xf = 180 + 256 + 136 + 140 + 72


= 784


Arithmetic mean =


Arithmetic mean = = 65.33


CONCLUSION: Mean weight of given data is 65.33kg


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