12 利用SPSS描述下列数据 12.82 & 13.62 & 13.87 & 14.03 & 14.11 & 14.83 & 15.79 & 16 & 16.33 & 16.42 16.66 & 16.89 & 16.9 & 17.09 & 17.29 & 17.4 & 17.51 & 17.98 & 18.01 & 18.31 18.54 & 18.57 & 18.57 & 18.65 & 18.67 & 18.76 & 19.05 & 19.32 & 19.67 & 19.76 离散趋势是_____(两位小数)

12 利用SPSS描述下列数据 $\begin{array}{|c|c|c|c|c|c|c|c|c|c|c|c|c|c|c|c|} \hline 12.82 & 13.62 & 13.87 & 14.03 & 14.11 & 14.83 & 15.79 & 16 & 16.33 & 16.42 \\ \hline 16.66 & 16.89 & 16.9 & 17.09 & 17.29 & 17.4 & 17.51 & 17.98 & 18.01 & 18.31 \\ \hline 18.54 & 18.57 & 18.57 & 18.65 & 18.67 & 18.76 & 19.05 & 19.32 & 19.67 & 19.76 \\ \hline\end{array}$ 离散趋势是_____(两位小数)

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