唯一201314
标准差又常称均方差，能反映一个数据集的离散程度，也是数学考试经常出现的考点。那么你知道标准差用英语怎么说吗?下面跟着我一起来学习一下吧。
标准差的英语说法：
standard deviation
标准差相关英语表达：
标准差系数 coefficient of standard deviation
样品标准差 sample standard deviation
母体标准差 population standard deviation
标准差单位 standard deviation unit
标准差的英语例句：
1. The positive square root of the variance is called the standard deviation.
方差的正的平方根叫做标准差.
2. The statistical description includes percentages , means , standard deviations, frequency, and Pearson's r.
统计描述用百分数、均数 、 标准差 、 频数 、 Pearson相关系数.
3. Standard deviation tells you if the estimate includes a pad.
标准差告诉你估算的不确定性有多高.
4. Corresponding to the same probabilities, the ranges of uniform R. V. are calculated.
再以相同之机率算出标准差亦为一之均匀分布随机变数对应之变数范围.
5. This spread of possible outcomes is usually measured by standard deviation.
这一未来结果的展步通常以标准差衡量.
6. These standard deviations are also calculated from monthly data.
18这些标准差也是从月度数据计算得出.
7. The usual measure of this spread is the standard deviation or variance.
这种展步的通常衡量是标准差或者方差.
8. Calculate the variance and standard deviation of this rate of return.
计算这一回报率的方差和标准差.
9. The actual deviation is positive because we don't know what will happen.
实际的标准差是正数因为我们不知道会发生什么.
10. Relative standard deviation of this method is below 3 %.
方法 的相对标准差低于3%.
11. The standard deviation of a well - diversified portfolio is proportional to its beta.
一个分散充分的投资组合的标准差与其beta是成比例的.
12. A . A . Standard deviation tells you if the duration is realistic.
标准差告诉你历时是否是现实的.
13. Volatility is the annual standard deviation of some assets return.
某项资产的波动率指的是该资产收益的年标准差.
14. Standard deviations , 95 % confidence interals, and 90 % prediction interals also calculated.
并计算标准差 、 95%可信区间和90%的预测区间.
15. What does the standard deviation have to do with risk?
标准差和风险有何关系?
Incana1992
s =标准差let { x1,x2,...,xn} be the samplemean = (x1+x2+xn)/ns^2 = [(x1-mean)^2 + (x2-mean)^2 + ...(xn-mean)^2]/ns = {[(x1-mean)^2 + (x2-mean)^2 + ...(xn-mean)^2]/n} ^(1/2)
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