Sxx Variance Formula Access

Suppose we have a dataset of exam scores:

Sxx = Σ(xi - x̄)²

| Student | Score | Deviation from mean | Squared deviation | | --- | --- | --- | --- | | 1 | 80 | 0 | 0 | | 2 | 70 | -10 | 100 | | 3 | 90 | 10 | 100 | | 4 | 85 | 5 | 25 | | 5 | 75 | -5 | 25 | Sxx Variance Formula

s² = Sxx / (n-1)

s² = (1/(n-1)) * Σ(xi - x̄)²

Q: How do I calculate Sxx in Excel? A: You can calculate Sxx in Excel using the formula =SUM((A:A-AVERAGE(A:A))^2) , where A:A represents the range of data. Suppose we have a dataset of exam scores:

Finally, calculate Sxx: