deletions | additions       diff --git a/SS31-1.tex b/SS31-1.tex  index cd0d194..9376145 100644  --- a/SS31-1.tex  +++ b/SS31-1.tex 
...
\hline  & $\bar{x}$ & $x_{max}$ & $x_{min}$ & $R$ & $s_{d_2}$ & $s_{c_4}$ & $s$ & $\hat{\sigma}$ \\   \hline  1 & 33.53 & 34.80 & 32.50 & 2.30 & 0.75 & 0.77 & 0.75 & 0.56 \\   2 & 32.12 & 33.80 & 30.80 & 3.00 & 0.97 & 0.94 & 0.92 & 0.84 \\   3 & 32.78 & 34.60 & 30.40 & 4.20 & 1.36 & 1.53 & 1.49 & 2.23 \\