The mean of a set of observations is \bar{x}. If each observation is divided by a non-zero number α and then increased by 10, then the mean of the new set of observations is:
1
\frac{\bar{x}}{α}
2
\frac{\bar{x}+10}{a}
3
\frac{\bar{x}}{α}+10
4
α \bar{x}+10
5
Question Not Attempted