標準偏差
deviation
[英][?di:vi?e?n][美][?divi?e?n]
n.背離，偏離; 離經叛道的行為; [航]偏航; [數]絕對偏差;
復數：deviations
例句:
1.
We take any deviation from these rules very seriously.
我們對執行這些規則中的任何偏差都非常重視。
2.
The most important statistical features of brownian motion are its mean andits standard deviation.
布朗運動最重要的統計學特征就是它的平均值和標準差