# The mean of 12 nu

Given that, mean of 12 numbers = 48

Mean can be given by Where, x = Sum of all observations

& n = Total number of observations

Here, Mean = 48 and n = 12.

So,  x = 48 × 12

x = 576

We have sum of all observations = 576

If 4 is multiplied by each of the 12 numbers, then the new sum of all observations = 576 × 4

New sum of all observations = 2304

Now, we have fresh data: x’ = 2304, n = 12 New mean = 192

Thus, new mean of the observation is 192.

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