Warm Up Solutions

1. Name the mean and standard deviation.

$\mu =7240, \sigma =1680$

2. Name the ranges in standard deviation from the Empirical Rule.

$$\begin{gathered} 68\%: \left[5560, 8920\right] \\ 95\%: \left[3880, 10600\right] \\ 99.7\%: \left[2200, 12280\right] \end{gathered}$$