forked from amazingfate/help
* rewrite introduction of the the functions * add Z-test and Chi-square test help text Change-Id: I70d720c75fcaec896d8e2a86cca3689cc43763b6 Reviewed-on: https://gerrit.libreoffice.org/14701 Tested-by: David Tardon <dtardon@redhat.com> Reviewed-by: David Tardon <dtardon@redhat.com>