Mean of n no. is x. If each observation is multiplied by 4,what will be the new mean
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Mean of 'n' numbers = x
When each observation is multiplied by 4,
New mean = 4*x = 4x
[concept: mean = x... sum total = n*x.. now,when each term is multiplied by '4', sum total = 4*n*x(since 4 is added with each term)..so,new mean = 4*n*x/n = 4x]
Hope it helps.
When each observation is multiplied by 4,
New mean = 4*x = 4x
[concept: mean = x... sum total = n*x.. now,when each term is multiplied by '4', sum total = 4*n*x(since 4 is added with each term)..so,new mean = 4*n*x/n = 4x]
Hope it helps.
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