The Variance Calculator by Ease Tools is a free online tool that computes both population variance (σ²) and sample variance (s²) for any numeric dataset. It provides a complete descriptive statistics summary including mean, standard deviation, count, sum of squares, and step-by-step breakdown. Key features include:
- Dual Mode: Switch between population and sample variance with Bessel's correction.
- Instant Results: Real-time calculation with high precision (up to 3 decimal places).
- Export Options: Copy results to clipboard or save as a text file.
- Mobile-Friendly: Responsive design with symmetrical grid layout for small screens.
- Privacy-First: All processing happens locally in the browser; no data is sent to servers.
Ideal for students, teachers, data analysts, and researchers who need quick and accurate variance calculations for homework, reports, or quality control.
