Key Features
- Calculates descriptive metrics including mean, median, mode, standard deviation, variance, range, and IQR.
- Builds grouped frequency tables with count, frequency, and cumulative frequency.
- Includes Jarque-Bera normality testing, 95% confidence interval, and IQR outlier detection.
- Supports linear regression and one-sample t-tests for quick study and analysis workflows.
How to Use
- Paste numeric values in the input area using commas, spaces, or line breaks.
- Use "Generate Sample" for demo data, or add one value through "Add Point".
- Set frequency bin count between 3 and 20 for better grouped summaries.
- Regression requires X values with the same length as Y values.
- t-test supports two-tailed, left-tailed, and right-tailed options.
Use Cases
- Statistics coursework, classroom labs, and exam preparation.
- Survey review, distribution checks, and outlier screening.
- Operational analysis with quick correlation and significance checks.
Notes
- All calculations run locally in your browser.
- With small samples, normality and significance outputs should be interpreted carefully.
- For critical decisions, validate results with full statistical workflows.