the average of 12 values is 18. if 3 is subtracted from each of the values ,then the new average are
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3 is subtracted from each number then final average will be:
initial average - 3
which will be equal to
18-3
15
it is the property of average...
initial average - 3
which will be equal to
18-3
15
it is the property of average...
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