What this calculator does
Sum of squares works out total squared deviation of each data point from the mean, the building block of variance. Enter your own figures above and the answer updates as you type: nothing is fixed in the code, so the result reflects exactly the numbers you supply.
The formula this calculator evaluates is printed under the tool and explained below, so you can check the working by hand or reuse it in a spreadsheet.
The formula
FormulaSS = Σ(yᵢ − ȳ)², where ȳ is the sample mean
The inputs explained
| Field | What to enter |
|---|---|
| Data set (comma separated) | A list of numbers, separated by commas or spaces. |