Statistics & Probability

Perform an F-test to determine if two population variances are equal. Ideal for researchers and students...

Calculate P-values for Z, t, and Chi-square distributions. Essential statistical tool for academic research, hypothesis testing,...

Calculate the harmonic mean for rates, ratios, and speeds. Supports bulk data input and automatically filters...

A high-performance statistical tool for A/B testing and data science. Compute F-Tests directly from raw datasets...

Calculate the weighted average of probabilistic outcomes. Essential for risk management, poker strategy, and investment analysis....

Convert raw scores to Z-scores and find the P-value probability. Interactive Bell Curve visualization showing the...

A streamlined, lightweight version of the Mann-Whitney U Test designed for rapid hypothesis checking. Ideal for...

Perform the Mann-Whitney U Test (Wilcoxon Rank-Sum) on large datasets. Features automatic data ranking, U and...

Calculate the exact mathematical probability of winning major lottery jackpots like Powerball and EuroMillions. Analyze custom...

Identify profitable betting opportunities by calculating Expected Value (EV). Includes a Kelly Criterion tool to determine...

Calculate significant differences between two groups with this comprehensive Student's t-test tool. Supports raw data (CSV)...

Educational tool for calculating Permutations, Combinations, and Event Probabilities. Shows step-by-step working logic and includes Z-Table...

Calculate Population Variance (σ²) and Sample Variance (s²) for large datasets. Features high-precision statistical logic and...

Compute the Confidence Interval (CI) for mean estimates using Z-score or T-score methodology. Includes visualization of...

Calculate the median of large datasets instantly. Visualizes distribution and highlights outliers. Distinct from mean/mode for...

Statistical tool for risk-adjusted return analysis. Computes CV, Standard Deviation, and Mean, employing IQR logic to...

Calculate Pearson's r with automatic scatter plot generation. Includes a critical value lookup for statistical significance...

Statistical tool for calculating the nth percentile of any dataset. Features Gaussian Bell Curve visualization, rank...

Calculate the sum of squared deviations (SS), variance, and standard deviation with step-by-step residual tables. Includes...

Risk management tool for the Martingale strategy. Calculates the stake progression needed to recover losses and...

Calculate Spearman's Rho for non-parametric data. Shows step-by-step ranking, d-squared calculation, and significance (p-value) for statistics...

Calculate seasonal indices and centered moving averages from time-series data. Forecast trends and identify seasonal patterns...