Re: TI-M: Stats Question


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Re: TI-M: Stats Question




In a message dated 9/11/00 6:56:59 PM Mountain Daylight Time, 
danb2k@hotmail.com writes:

> In the meantime:
>  
>  normalcdf(z1,z2)=fnInt(normalpdf(x),x,z1,z2)
>  
>  but I think that fnInt has a different syntax on the 89.

Well you could use either nInt or symbolic integration (but I think in the 
case of a function like the normal curve which can't be symbolically 
integrated, either will result in a numerical integration).  That actually 
kinda takes a while, though...but it does go from proportion -> z-score if 
you use symbolic integration :)

JayEll