Enter each individual number in the set and their squares into the calculator to determine the sum of squares (Σx2).

## Σx2 Formula

The following formula is used to calculate the sum of squares (Σx2) for a set of numbers.

Σx2 = Σ(x^2)

Variables:

- Σx2 is the sum of the squares of the numbers
- x is each individual number in the set

To calculate the sum of squares, square each individual number in the set, then add all these squared numbers together. This will give you the sum of squares (Σx2).

## What is a 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.

## How to Calculate Σx2?

The following steps outline how to calculate the sum of the squares of a set of numbers (Σx2).

- First, gather the set of numbers.
- Next, square each individual number in the set.
- Next, sum up all the squared numbers.
- Finally, calculate the sum of the squares (Σx2).
- After inserting the numbers and calculating the result, check your answer with a calculator.

**Example Problem:**

Use the following set of numbers as an example problem to test your knowledge.

Set of numbers: 2, 4, 6, 8