Suppose you flip a coin 100 times, and it turns up heads 70 times. *Is the coin fair?* Suppose you roll a die 100 times, and it shows 30 sixes. *Is the die loaded?* In statistics, the chi-square test calculates how well a series of numbers fits a dis...

See Orwant, Hietaniemi, and Macdonald, *Mastering Algorithms in Perl*, O'Reilly 1999. From Chapter 15: The significance tests covered so far can only pit one group against another. Sure, we could do a t-test of every possible pair of web design firms...

See Orwant, Hietaniemi, and Macdonald, *Mastering Algorithms in Perl*, O'Reilly 1999. From Chapter 15: The significance tests covered so far can only pit one group against another. Sure, we could do a t-test of every possible pair of web design firms...

This is a bundle of modules related to statistics. Please have a look at Bundle::Math. If you would like to see a specific module included in a future version of this bundle, please send me an email or use rt.cpan.org....

This Perl module calculates percentage points (5 significant digits) of the u (standard normal) distribution, the student's t distribution, the chi-square distribution and the F distribution. It can also calculate the upper probability (5 significant...

The G-test of independence is an alternative to the chi-square test of independence for testing for independence in contingency tables. G-tests are coming into increasing use and as with the chi-square test for independence the G-test for independenc...