Find the mean and variance for each of the data in Question:
First 10 multiples of 3.

Explanation

The first 10 multiples are

`3,6,9,12,15,18,21,24,27,30`

Thus, the mean is

`Mean=(3+6+9+12+15+18+21+24+27+30)/10=165/10=16.5`


The variance of the experiment is

`variance=(3^2+6^2+....30^2)/10-16.5^2`

`variance=346.5-272.25`

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