Learn Distribution with R

With this app, you can learn chi-squared,f and t distribution.

Analysis by Cross-Tabulation

To edit data, left-click within the table.

To insert/remove row(s) or column(s), right-click within the table.


How to calculate chi-squared


Distribution of chi-squared value

Select tests

Results of selected tests


Two Sample t-test


Distribution of two groups

How to caluclate F-value ?

      If sd1 > sd2, then f = sd12 / sd22

      else f = sd22 / sd12

Distribution and probability of F-value

Distribution and probability of t-value

Plot for simulated data

Results of tests