standard deviation 是什么意思

中文翻译与英英解释

	【统计学】标准(偏)差。

	standard: n. 1.标准，水准，规格，模范。 2.旗；军旗，队旗； ...
	deviation: n. 1.脱离，越轨，背离 (from) 。 2.偏向， ...

the square root of the variance

In statistics and probability theory, standard deviation (represented by the symbol sigma, σ) shows how much variation or "dispersion" exists from the average (mean, or expected value). A low standard deviation indicates that the data points tend to be very close to the mean; high standard deviation indicates that the data points are spread out over a large range of values.

例句与用法

	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 standard deviation from the mean is the preferred quantity . 用平均值得出标准偏差是优先采用衡量的单位。
	3.	On the scale, the slope of the straight line provides a measure of the standard deviation . 在坐标上，直线的斜率代表偏差数。
	4.	Thus, requirements should, ideally, be expressed in terms of a mean and standard deviation . 因此，表达需求量的理想术语应该是平均离差和标准离差。
	5.	We shall use the standard error of estimate as a tool in the same way that we can use the standard deviation . 同标准差一样，应该把估计值平均误差当作一个工具。
	6.	Features : 1 . mean 0 ; 2 . s 1 standard deviation 政府规定是由买方还是卖方承担
	7.	Standard deviation of weighted arithmetic mean 加权算术平均值的标准偏差
	8.	Study on asymmetrical standard deviation charts 非对称标准差控制图的研究
	9.	Retrieves the standard deviation value for a specified column 检索指定列的标准偏差值。
	10.	Statistical standard deviation for all values in the expression 表达式中所有值的标准偏差

standard deviation是什么意思

standard deviation 是什么意思

中文翻译与英英解释

例句与用法