What is Standard Deviation in Statistics?
In Statistics, the Standard Deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the values are spread out over a wider range. A useful property of the standard deviation is that, unlike the variance, it is expressed in the same unit as the data. The Standard Deviation of a random variable, sample, statistical population, data set, or probability distribution is defined and calculated as the square root of its variance.
How to Calculate Standard Deviation given Mean?
Standard Deviation given Mean calculator uses Standard Deviation of Data = sqrt((Sum of Squares of Individual Values/Number of Individual Values)-(Mean of Data^2)) to calculate the Standard Deviation of Data, Standard Deviation given Mean formula is defined as the measure of how much the values in a dataset vary. It quantifies the dispersion of data points around the mean, and calculated using the mean of the given data. Standard Deviation of Data is denoted by σ symbol.
How to calculate Standard Deviation given Mean using this online calculator? To use this online calculator for Standard Deviation given Mean, enter Sum of Squares of Individual Values (Σx2), Number of Individual Values (N) & Mean of Data (μ) and hit the calculate button. Here is how the Standard Deviation given Mean calculation can be explained with given input values -> 5.267827 = sqrt((85/10)-(1.5^2)).