Answer
Range: $2$ to $11$.
Standard deviation is $3.067$
Work Step by Step
Given: $ 3,5, 2,3,7, 11, 8,4$
Here, the range is $2$ to $11$.
Thus, the standard deviation is given $\delta=\dfrac{\sqrt{527/14}}{2}=3.067$
Hence,
Range: $2$ to $11$.
Standard deviation is $3.067$
