HP 48gx scatterplot?  Printable Version + HP Forums (https://archived.hpcalc.org/museumforum) + Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum1.html) + Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum2.html) + Thread: HP 48gx scatterplot? (/thread34147.html) 
HP 48gx scatterplot?  Karen Gibson  05162003 Any help with this question is greatly appreciated. I apologize now for my lack of knowledge on this calc. I've only had it a month, I've figured most of the things out on my own, but this one has me stumped.
I am doing a scatterplot, that part I have down. I need to get the equation for the data after I have plotted it. I've tried using the STATL button on the menu, then FCN VIEW to get the equation. For some reason it is returning an incorrect equation. I know this because I've tried several out of my Algebra book and do not get the correct answer. When I do the STATL instead of following the data plotted it does a diagonal line accross the screen and this is the equation it returns. Re: HP 48gx scatterplot?  R Lion (Spain)  05162003 Hi Karen:
Raul
Re: HP 48gx scatterplot?  Karen Gibson  05172003 Hi Raul,
Thanks for the help. Re: HP 48gx scatterplot?  R Lion (Spain)  05172003 You are getting the Linear regression but you want a polynomial regression. You need some extra software (i.e.: http://www.hpcalc.org/hp48/math/statistic/bfit.zip )
Raul
Re: HP 48gx scatterplot?  Karen Gibson  05172003 Thanks Raul, I'll try that, need to get some more hardware first.
