Answer
The mean of the numbers $20.2,27.3,35.1,30.6,29.6\text{ and }22.6$ is $27.6$.
Work Step by Step
The sum of the numbers is,
$20.2+27.3+35.1+30.6+29.6+22.6=165.4$
The mean of the $n$ numbers is,
$\text{mean}=\frac{\text{Sum of }n\text{ numbers}}{n}$
$\begin{align}
& \text{mean}=\frac{\text{165}\text{.4}}{6} \\
& =27.56 \\
& =27.6
\end{align}$
Hence, the mean of the numbers is $\text{mean}=27.6$
