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Standard deviation calculator
The following calculator will find standard deviation, variance, skewness and kurtosis of the given data set. The calculator will generate a step by step explanation on how to find these values.
examples
example 1:
Find the standard deviation for the given set of numbers: $ 3,~ 4,~ 11,~ 21,~ 23,~ 4,~ 5 $.
example 2:
Find the variance of the following test results percentages: $ 73\%,~ 58\%,~ 67\%,~ 92\%,~ 73\%,~ 55\%,~ 85\%, ~54\% $.
example 3:
Find the skewness for the following data set: $8, ~6, ~7, ~10, ~14, ~20, ~25, ~30, ~50, ~53$.
example 4:
Calculate standard deviation of: $-4, 3.2, 7, 6.1, ~ 2,~ 8$.
About standard deviation
Definition: The standard deviation measures how close the set of data is to the mean value of the data set. If data set have high standard deviation than the values are spread out very much. If data set have small standard deviation the data points are very close to the mean.
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