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This page generates a graph of the sampling distribution of the difference between two means and displays the probabilities associated with that distribution. Users enter the population standard deviation and the...
Richard Lowry of Vassar College has created a Java based program which generates a graphic and numerical display of the properties of the tdistribution for values of degrees of freedom between 4 and 200, inclusive....
This page, created by Richard Lowry of Vassar College, generates a histogram of a Poisson distribution and the associated table of probabilities. Upon opening the page, users will be prompted to enter the mean of the...
Given the population incidence of a certain disease, and the conditional probabilities of positive and negative test results, what are the probabilities for a particular test result of a true positive, true negative,...
This page, created by Richard Lowry of Vassar College, generates a Poisson distribution, as approximated by the binomial. After clicking continue, users must enter the sample size (n>39) and probability of success...

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