Sum of Squares (Σx²) Calculator

Calculate Sum of Squares (Σx²)

Formula

The formula to calculate the sum of squares (Σx²) is:

\[ \Sigma x^2 = \sum (x^2) \]

Where:

What is Σx²?

Σx², in statistical notation, represents the sum of the squares of a set of values (x). This is often used in various statistical formulas and calculations, such as calculating the variance or standard deviation in a data set. It involves squaring each individual value in the set, and then summing all these squared values together.

Example Calculation

Let's assume the following values:

Using the formula to calculate the sum of squares (Σx²):

\[ \Sigma x^2 = 2^2 + 3^2 + 4^2 = 4 + 9 + 16 = 29 \]

The Sum of Squares (Σx²) is 29.