Ti 89 titanium basic statistics function?

Is there a way to do what are known as the normalcdf( and invnorm( functions on an 84, on an 89 titanium? Typing in the longgggggggg function of a normal probability curve is tedious, and trying to do the equivalent of invnorm( requires my calculator to solve for a variable bound of an indefinite integral, and this takes 5 minutes minimum when my friends' 84 gets the same answer in milliseconds if that. Help? :(

Thanks

Anthony

Re: Ti 89 titanium basic statistics function?

As far as I know you need the "Stats/List Editor" Application on your 89 Titanium. This should come pre-loaded but you can get it here Statistics with List Editor App for the TI-89 Titanium by Texas Instruments - US and Canada

Once you enter that package the functions you seek will be under F5 (distributions)

Hope this helps