standard deviation
noun
UK/ˌstæn.dəd ˌdiː.viˈeɪ.ʃᵊn/
US/ˌstæn.dɚd ˌdiː.viˈeɪ.ʃᵊn/
Definitions of standard deviation noun
- Countable(可数名词)mathematics(数学)
A measure that quantifies the extent to which individual values in a dataset deviate from the average value (mean) of that dataset.
标准偏差
The relatively small standard deviation of this dataset indicates that the data points are clustered closely around the mean.
这个数据集的标准差相对较小，表明数据点紧密地围绕在平均值周围。
A higher standard deviation of a portfolio's returns indicates a greater level of risk associated with it.
投资组合回报的标准差越高，表示其相关风险越大。
Analysts use standard deviation to evaluate the volatility of stock prices.
分析师使用标准差来评估股票价格的波动性。