This entry, which describes an external link, was imported from my old website which is now defunct. I’ve therefore given it an artificial post date of 1 August 2002.
Microsoft Knowledge Base Article 828888 is an Overview of Improvements in Statistical Functions for Excel 2003. It gives details of the functions in the Analysis ToolPak that have changed since previous releases. It is available at http://support.microsoft.com/default.aspx?kbid=828888.