Categorical Frequency Data

PROCEDURES APPLICABLE TO CATEGORICAL FREQUENCY DATA

Fisher's Exact Probability Test. This page will perform the Fisher exact probability test for a 2x2 table of cross-categorized frequency data.
Exact Binomial Probability Calculator. This page will calculate exact binomial probabilities for a standard "k out of n" situation; for example, the probability of getting exactly 16 heads in 20 tosses of a coin, the probability of getting 16 or more heads in 20 tosses, and the probability of getting 16 or fewer heads in 20 tosses.
Binomial z-Ratio Calculator. This page will calculate the binomial z-ratio for a standard "k out of n" situation. The page includes a frame showing a version of the conventional table of the unit normal distribution to which the calculated z-ratio can be referred.
Chi-Square "Goodness of Fit" Test. This page will calculate the value of chi-square for a one-dimensional "goodness of fit" test, for up to 8 mutually exclusive categories.
Chi-Square Test for Cross-Categorized Frequency Data. This page will calculate the value of chi-square for a rows-by-columns contingency table, for up to 5 rows and 5 columns.
Log-Linear Analysis for Categorical Frequency Data. This page will calculate the values of G² for first- and second-order interaction effects for a 2x2x2 table of cross-categorized frequency data. [The document might be somewhat slow to scroll and draw to the screen, as its HTML structure is fairly elaborate.]