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What is the sum of squares?
In algebra, the sum of squares is used to find the sum of two or more squared terms. For example, use the sum of squares method, if two squared terms are given with an addition sign among them such as a2 + b2.
In statistics, the sum of squares is the variation of the given step of data from its mean. It subtracts the mean from all the observations and finds the square of differences to find the statistical sum of squares.