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194 tools
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 calculator can calculate the probability of two events, as well as that of a normal distribution. Also, learn more about different types of probabilities.
Free online standard deviation calculator with step-by-step calculations. Perfect for students, teachers, and professionals needing quick mathematical computations.
Use the combinations calculator to determine the number of combinations for a set.
Use the permutation calculator to determine the number of permutations in a set.
Calculator to compute the confidence interval or margin of error of a sample based on the desired confidence level. It also provides an error bar diagram.
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 range calculator will quickly calculate the range of a given data set.
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.
The p-value calculator can help you find the p-value and evaluate how compatible your data is with the null hypothesis.
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.
This free sample size calculator determines the sample size required to meet a given set of constraints. Also, learn more about population standard deviation.
The accuracy calculator is a simple tool for calculating accuracy using three simple methods.
ANOVA Calculator performs statistical analysis to identify significant differences between group means using one-way and two-way ANOVA.
Bayes' theorem calculator helps calculate conditional probabilities in accordance with Bayes' rule.
What is the chance of choosing the box containing only gold? Find the answer to Bertrand's box paradox with Omni!
Bertrand's paradox is an intriguing warning for every scientist: dealing with infinity and randomness can lead to pitfalls!
The birthday paradox calculator is a tool that enables you to determine the probability that at least two people from a group of a given size will share a birthday.
The boy or girl paradox is an excellent example of why how we ask questions matters!
The Chebyshev's theorem calculator counts the probability of an event being far from its expected value.
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.
Coin flip probability calculator lets you calculate the likelihood of obtaining a set number of heads when flipping a coin multiple times.