Critical Value Calculator Critical Value Calculator Calculate critical values for Z, t, Chi-square, and F distributions for hypothesis testing and confidence intervals. Input Parameters Test Type Z-test (Normal Distribution)t-test (Student’s t Distribution)Chi-square TestF-test Select the type of statistical test Tail Type Two-tailedLeft-tailedRight-tailed Choose the direction of your test Significance Level (ฮฑ) 0.01 (99% confidence)0.05 (95% … Read more
Quadratic Regression Calculator Quadratic Regression Calculator Find the best-fit quadratic equation (y = axยฒ + bx + c) for your data points and analyze the relationship between variables. Input Data X Values Enter X values separated by commas Y Values Enter Y values separated by commas (same count as X values) Calculate Sample Data Clear … Read more
Coefficient of Determination (Rยฒ) Calculator ๐ Rยฒ Calculator Calculate the Coefficient of Determination (Rยฒ) to measure how well your regression model explains the variance in your data. Perfect for statistical analysis and model evaluation. ๐ Input Data Choose Input Method Sum of Squares Raw Data Points Total Sum of Squares (SST) Sum of squared differences … Read more
P-Value Calculator – Statistical Significance Testing Tool ๐ P-Value Calculator Calculate statistical significance and p-values for various statistical tests. Determine if your results are statistically significant with confidence. ๐ข Test Parameters Select Statistical Test T-Test Z-Test Chi-Square F-Test T-Statistic The calculated t-statistic from your test Degrees of Freedom Usually n-1 for one-sample, nโ+nโ-2 for two-sample … Read more
Bonferroni Correction Calculator – Multiple Comparisons Statistical Tool ๐ฌ Bonferroni Correction Calculator Adjust your significance levels for multiple comparisons to control the family-wise error rate and avoid false discoveries in statistical testing. ๐ Input Parameters Original Significance Level (ฮฑ) 0.01 (1%)0.05 (5%)0.10 (10%) The significance level before correction Number of Comparisons Total number of statistical … Read more
A/B Test Calculator – Statistical Significance Testing ๐งช A/B Test Calculator Determine statistical significance of your A/B tests with confidence intervals, p-values, and comprehensive analysis to make data-driven decisions. ๐ Test Data Control (A) Original Version Visitors Total number of visitors Conversions Number of successful conversions Variant (B) Test Version Visitors Total number of visitors … Read more
Polynomial Regression Calculator ๐ Polynomial Regression Calculator Fit polynomial curves to your data points and analyze the relationship between variables with detailed statistics and visualizations. Input Data Polynomial Degree Linear (1st degree)Quadratic (2nd degree)Cubic (3rd degree)Quartic (4th degree)Quintic (5th degree) Data Points (X, Y) Enter X and Y values separated by commas, one pair per … Read more
Virtual Dice Roller ๐ฒ Virtual Dice Roller Roll virtual dice with realistic animations and comprehensive statistics. Perfect for board games, RPGs, and probability experiments. Choose Your Dice D6 (Standard) D4 (Pyramid) D8 (Octahedron) D10 (Decahedron) D12 (Dodecahedron) D20 (Icosahedron) D100 (Percentile) โ 1 + ๐ฒ Roll Dice! Click “Roll Dice!” to start rolling ๐ Roll … Read more
Mean Absolute Deviation Calculator Mean Absolute Deviation Calculator Calculate the average distance of data points from the mean. Enter comma-separated values to find MAD with detailed step-by-step analysis and visualizations. ๐ Mean Absolute Deviation (MAD) Calculator Statistical Measure: MAD measures the average absolute distance between each data point and the mean, providing insight into data … Read more
Decile Calculator – Statistical Analysis Tool ๐ Hypergeometric Distribution Calculator Calculate hypergeometric distribution probabilities for sampling without replacement from finite populations with two types of objects. Calculator What is Hypergeometric Examples Formula Applications Hypergeometric Distribution Calculator Calculate hypergeometric distribution probabilities for sampling without replacement from finite populations. This calculator computes mean, variance, standard deviation, and … Read more