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Random combination of numbers from specified range
This calculator randomly picks several numbers from specified range.
Mean, variance and standard deviation of discrete random variable
This online calculator calculates the mean, variance, and standard deviation of random variables entered in the form of a value-probability table.
Random Letters Generator
This online generator just generates specified number of symbols, randomly selecting them from given set of symbols
Covariance calculator
This online calculator computes covariance between two discrete random variables. It also shows the expected value (mean) of each random variable. You can find the formula used for the calculation of covariance below the calculator.
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