The mean of 20 number is 16. if each number is multiplied by 3, what will be the new mean?
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If the mean of 20 no is 16 and we multiply each no with 3 the mean will also be multiplied by 3.
So the new mean is 16×3 = 48
So the new mean is 16×3 = 48
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Mean = ( sum of observations )/(number of observations )
=> 16 = ( sum of 20 Numbers)/(20)
=> 320 = sum of 20 Numbers
When, each number is multiplied by 3
Mean = [ 3(sum of 20 Numbers )] / 20
Mean = 3(320)/20
Mean = 3×16=48
=> 16 = ( sum of 20 Numbers)/(20)
=> 320 = sum of 20 Numbers
When, each number is multiplied by 3
Mean = [ 3(sum of 20 Numbers )] / 20
Mean = 3(320)/20
Mean = 3×16=48
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