相对标准偏差(relative standard deviation；RSD)又叫标准偏差系数、变异系数、变动系数等，由标准偏差除以相应的平均值乘100%所得值，可在检验检测工作中分析结果的精密度。

Use our relative standard deviation calculator to find the RSD for a set of data. Plus, learn the formula and steps to find it.

在概率论和统计中，相对标准偏差（rsd或％rsd）是变异系数的绝对值。 它通常表示为百分比。 它可用于比较不同绝对幅度的不同测量值之间的不确定性。

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What is a Relative Standard Deviation? The relative standard deviation (RSD) is a special form of the standard deviation (std dev). It’s generally reported to two decimal places (i.e. an RSD of 2.9587878 becomes 2.96). As the denominator is the absolute value of the mean, the RSD will always be positive.

2021年2月19日 · RSD的计算公式为：相对标准偏差(RSD)=标准偏差(SD)/计算结果的算术平均值(X)。相对标准偏差(RSD)就是指：标准偏差与测量结果算术平均值的比值，该.相对标准偏差(RSD,relative standard deviation)就是指：标准偏差与计算结果算术平均值的比值

通常，缩写词 rsd 用作相对标准偏差的符号。 相对标准差公式. 相对标准偏差等于标准偏差除以平均值乘以100。因此，要计算相对标准偏差，必须首先确定标准偏差和算术平均值，然后将两次统计测量结果相除，最后乘以100。 换句话说，相对标准差的公式为：

In probability theory and statistics, the relative standard deviation (RSD or %RSD) is the absolute value of the coefficient of variation. It is often expressed as a percentage. It is useful for comparing the uncertainty between different measurements of varying absolute magnitude.

In probability theory and statistics, the coefficient of variation (CV), also known as relative standard deviation (RSD), is a standardized measure of dispersion of a probability distribution or frequency distribution [4]. 基本含义： 当进行两个或多个资料变异程度的比较时，如果度量单位与平均数相同，可以直接利用标准差来比较。 如果单位和（或）平均数不同时，比较其变异程度就不能采用标准差，而需采用标准差与平均数的比值（相对值）来比较 [5] [6]。

Make use of this free RSD calculator online that is specifically designed to calculate relative deviation of a data set. The RSD value is taken into consideration with the mean position and that is why it is considered a special kind of data dispersion about the mean.