Algorithms for calculating variance play a major role in statistical computing. A key problem in the design of good algorithms for this problem is that formulas for the variance may involve sums of squares, which can lead to numerical instability as well as to arithmetic overflow when dealing with large values.
Read more about Algorithms For Calculating Variance: Naïve Algorithm, Two-pass Algorithm, Online Algorithm, Weighted Incremental Algorithm, Parallel Algorithm, Example, Higher-order Statistics, Covariance
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