Answer
$\overline{x}=3.\overline{45}$
Work Step by Step
The mean $\overline{x}$ of a set of data with $n$ values can be found using the formula:
$\overline{x} = \dfrac{\sum{x}}{n}$ (sum of all the items divided by the number of values).
Solve for the mean using the formula above to obtain:
$\overline{x}=\dfrac{1.6+3.8+5.0+2.7+4.2+4.2+3.2+4.7+3.6+2.5+2.5}{11} = \dfrac{38}{11} =3.\overline{45}$