--- title: "Statistics Calculators | XTRAW Tools" description: "Statistics calculators for probability, combinatorics, A/B tests, effect size, research statistics, and data analysis." url: "https://xtraw.com/tools/calculators/statistics-calculators/by,ordering/results,25-48" date: "2026-08-21T13:32:57+00:00" language: "en-GB" --- ## [ A/B Testing Calculators ![A/B Testing Calculators category image](https://xtraw.com/images/virtuemart/category/222_ab-testing-calculators.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/ab-testing-calculators "A/B Testing Calculators") ## [ Combinatorics Calculators ![Combinatorics Calculators category image](https://xtraw.com/images/virtuemart/category/221_combinatorics-calculators.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/combinatorics-calculators "Combinatorics Calculators") ## [ Diagnostic Statistics Calculators ![Diagnostic Statistics Calculators category image](https://xtraw.com/images/virtuemart/category/218_diagnostic-statistics-calculators.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/diagnostic-statistics-calculators "Diagnostic Statistics Calculators") ## [ Distribution Calculators ![Distribution Calculators category image](https://xtraw.com/images/virtuemart/category/219_distribution-calculators.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/distribution-calculators "Distribution Calculators") ## [ Health Statistics Calculators ![Health Statistics Calculators category image](https://xtraw.com/images/virtuemart/category/216_health-statistics-calculators.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/health-statistics-calculators "Health Statistics Calculators") ## [ Probability Calculators ![Probability Calculators category image](https://xtraw.com/images/virtuemart/category/147_probability-calculators.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/probability-calculators "Probability Calculators") ## [ Regression & Correlation Calculators ![Regression & Correlation Calculators category image](https://xtraw.com/images/virtuemart/category/220_regression-calculators.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/regression-calculators "Regression & Correlation Calculators") ## [ Research Statistics Calculators ![Research Statistics Calculators category image](https://xtraw.com/images/virtuemart/category/223_research-statistics-calculators.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/research-statistics-calculators "Research Statistics Calculators") ## [ Survey Statistics Calculators ![Survey Statistics Calculators category image](https://xtraw.com/images/virtuemart/category/217_survey-statistics-calculators.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/survey-statistics-calculators "Survey Statistics Calculators") Sort by [Sorted Product Name +/-](https://xtraw.com/tools/calculators/statistics-calculators/by,ordering/dirDesc " +/-") [Product Name](https://xtraw.com/tools/calculators/statistics-calculators/by,product_name "Product Name") [Ordering](https://xtraw.com/tools/calculators/statistics-calculators/by,ordering "Ordering") - [Start](https://xtraw.com/tools/calculators/statistics-calculators/by,ordering "Start") - [Prev](https://xtraw.com/tools/calculators/statistics-calculators/by,ordering "Prev") - [1](https://xtraw.com/tools/calculators/statistics-calculators/by,ordering "1") - 2 - Next - End Page 2 of 2 Results 25 - 36 of 36 24 # Statistics Calculators #### Latest Tools [ ![Effect Size Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-effect-size-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/effect-size-calculator "Effect Size Calculator") new ## [Effect Size Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2329&virtuemart_category_id=18&Itemid=173) Calculate Cohen's d and other effect size measures. Use ... Be the first to review product [ ![A/B Test Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-ab-test-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/ab-test-calculator "A/B Test Calculator") new ## [A/B Test Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2328&virtuemart_category_id=18&Itemid=173) Determine statistical significance of an A/B experiment. ... Be the first to review product [ ![Probability Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-probability-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/probability-calculator "Probability Calculator") new ## [Probability Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2327&virtuemart_category_id=18&Itemid=173) Calculate basic, complementary, union, and intersection ... Be the first to review product #### Products [ ![Positive Predictive Value Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-positive-predictive-value-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/positive-predictive-value-calculator "Positive Predictive Value Calculator") new ## [Positive Predictive Value Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2310&virtuemart_category_id=18&Itemid=173) Calculate PPV from sensitivity, specificity, and ... Be the first to review product [ ![Quartile Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-quartile-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/quartile-calculator "Quartile Calculator") new ## [Quartile Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2297&virtuemart_category_id=18&Itemid=173) Calculate Q1, Q2, Q3 quartiles from a dataset. Use this ... Be the first to review product [ ![Relative Risk Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-relative-risk-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/relative-risk-calculator "Relative Risk Calculator") new ## [Relative Risk Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2308&virtuemart_category_id=18&Itemid=173) Calculate relative risk (risk ratio) from a 2×2 contingency ... Be the first to review product [ ![Sample Size Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-sample-size-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/sample-size-calculator "Sample Size Calculator") new ## [Sample Size Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2305&virtuemart_category_id=18&Itemid=173) Determine the required sample size for a given margin of ... Be the first to review product [ ![Sensitivity & Specificity Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-sensitivity-specificity-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/sensitivity-specificity-calculator "Sensitivity & Specificity Calculator") new ## [Sensitivity & Specificity Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2309&virtuemart_category_id=18&Itemid=173) Calculate sensitivity, specificity, and accuracy from a ... Be the first to review product [ ![Standard Deviation Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-standard-deviation-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/standard-deviation-calculator "Standard Deviation Calculator") popular ## [Standard Deviation Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2093&virtuemart_category_id=18&Itemid=173) Calculate standard deviation and variance from a data set. ... Be the first to review product [ ![Standard Error Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-standard-error-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/standard-error-calculator "Standard Error Calculator") new ## [Standard Error Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2302&virtuemart_category_id=18&Itemid=173) Calculate the standard error of the mean. Use this free ... Be the first to review product [ ![T Score Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-t-score-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/t-score-calculator "T Score Calculator") new ## [T Score Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2301&virtuemart_category_id=18&Itemid=173) Calculate T-score from a sample mean, population mean, ... Be the first to review product [ ![Uniform Distribution Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-uniform-distribution-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/uniform-distribution-calculator "Uniform Distribution Calculator") new ## [Uniform Distribution Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2320&virtuemart_category_id=18&Itemid=173) Calculate probabilities and statistics for a continuous ... Be the first to review product [ ![Z Score Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-z-score-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/z-score-calculator "Z Score Calculator") new ## [Z Score Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2300&virtuemart_category_id=18&Itemid=173) Calculate Z-score and find the corresponding probability. ... Be the first to review product [ ![Basic Probability Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-basic-probability-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/basic-probability-calculator "Basic Probability Calculator") popular ## [Basic Probability Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2106&virtuemart_category_id=18&Itemid=173) Calculate simple probability from favorable outcomes and ... Be the first to review product [ ![Combination & Permutation Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-combination-permutation-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/combination-permutation-calculator "Combination & Permutation Calculator") popular ## [Combination & Permutation Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2096&virtuemart_category_id=18&Itemid=173) Calculate combinations and permutations for counting ... 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