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194 tools
Its Bayes Theorem Calculator lets users enter prior probability, sensitivity, and false-positive rate to compute posterior probability. The interface is straightforward and focused on conditional probability use cases such as diagnostic testing. The tool is freely accessible with no mandatory subscription.
Its Rating Calculator is designed specifically for 5-star review distributions. You input counts for 1-star through 5-star ratings and it calculates the weighted average rating, total votes, and related metrics like percentile. It is available as a free web tool with no required subscription for basic use.
Two free random number generators that work in user-defined min and max range. Both random integers and decimal numbers can be generated with high precision.
This interactive GeoGebra activity demonstrates Bertrand's paradox using multiple random-chord generation methods. It lets users visually compare how different sampling assumptions produce different probabilities, making the paradox easy to explore for free in-browser.
This beta distribution generator and visualizer lets users set alpha and beta, generate samples, and view histogram/PDF output. It supports reproducible seeded mode and CSV/JSON/PNG export. The tool runs fully in-browser and is free to use.
This calculator can calculate the probability of two events, as well as that of a normal distribution. Also, learn more about different types of probabilities.
Use the combinations calculator to determine the number of combinations for a set.
The range calculator will quickly calculate the range of a given data set.
ToolDone’s Benford calculator checks whether your numeric list aligns with first-digit Benford distribution. It includes practical sample datasets and statistical interpretation guidance, including chi-square based conformity context. The tool is openly accessible with no required paid subscription.
Free online standard deviation calculator with step-by-step calculations. Perfect for students, teachers, and professionals needing quick mathematical computations.
The median calculator allows you to calculate the median number of a dataset with up to 50 values.
The mode calculator finds the modal value for your dataset.
The percentile calculator is here to help you get the k-th percentile of a data set of up to 30 numbers.
The variance calculator finds the variance of a set of numbers. It is a measure of how tightly clustered the data is around the mean.
ToolDone offers a dedicated Bertrand's Box Paradox calculator that computes conditional probability for the classic box setup. It includes selectable scenarios and Monte Carlo simulation options to compare theoretical and empirical results. The tool is publicly accessible on the site with no mandatory paid plan.
Use the permutation calculator to determine the number of permutations in a set.
Calculator to find out the z-score of a normal distribution, convert between z-score and probability, and find the probability between 2 z-scores.
The p-value calculator can help you find the p-value and evaluate how compatible your data is with the null hypothesis.
This free sample size calculator determines the sample size required to meet a given set of constraints. Also, learn more about population standard deviation.
Creating visual representations of categorical data becomes straightforward with an online pie chart maker. Users input their data points as labels and corresponding values to instantly generate a proportional circle graph. This visualization helps in identifying the relative size of different components within a whole, making complex datasets easier to interpret at a glance. Developers and data analysts often use these visualizations to present distribution patterns or survey results within project documentation. The interface allows for quick adjustments to labels and values, ensuring that the final chart accurately reflects the underlying data. By simplifying the graphing process, it serves as an efficient resource for those needing a fast, reliable way to communicate data proportions without manually calculating angles or using complex software.
The accuracy calculator is a simple tool for calculating accuracy using three simple methods.
Use our coin flipper for a 50/50 chance of getting heads or tails. Our tool helps you make a decision and determine your choices randomly.
Our confusion matrix calculator helps you to calculate all the metrics you need to assess the performance of your machine learning model.
With this dice probability calculator, you can easily find the various probabilities related to rolling a set of dice.
