The mean of 82 numbers is 38 if each number is multiplied by 4 find the new mean
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Mean of 75 numbers = 35
If each observation is multiplied by k then the mean becomes k times the original mean.
Since each observation is multiplied by 4 then the new mean = 4 × 35 = 140.
I think now u can do the maths by yourself
If each observation is multiplied by k then the mean becomes k times the original mean.
Since each observation is multiplied by 4 then the new mean = 4 × 35 = 140.
I think now u can do the maths by yourself
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