Guest y=mx+b Posted February 23, 2009 Report Share Posted February 23, 2009 I realized while doing my math homework and plotting points, that I have no idea how to do a curve of best fit. The way it's looking, I suppose a sinusoidal function or a polynomial function will fit best. I have no idea how to achieve either of these though. Guidance, please? Reply Link to post Share on other sites More sharing options...
Ionn Posted February 25, 2009 Report Share Posted February 25, 2009 the easiest way is to hit the stat button, then shift into the calc menu. From here there are a ton of different regressions that the calculator will run after you have inputed you points into a stat plot. Reply Link to post Share on other sites More sharing options...
akimatsu123 Posted March 1, 2009 Report Share Posted March 1, 2009 [quote name='y=mx+b' post='37901' date='Feb 23 2009, 12:08 PM']I realized while doing my math homework and plotting points, that I have no idea how to do a curve of best fit. The way it's looking, I suppose a sinusoidal function or a polynomial function will fit best. I have no idea how to achieve either of these though. Guidance, please?[/quote] I have found TI-83 for Dummies to be quite a good reference over the big thick thing that TI gives you. You can download it for free [url="http://www.freeexampapers.com/Dndex.php?d=SUIvTWF0aHMvUmVzb3VyY2Vz&catagory="]here[/url]. Reply Link to post Share on other sites More sharing options...
LinuxBeta Posted March 1, 2009 Report Share Posted March 1, 2009 If you are trying to find a regression: Step 1: input all of your values into the STAT list. This is done by: STAT 1:Edit. Step 2: Determine what type of regression would work. If you are not sure, experiment with a few of them, and see which one models the points best. Step 3: calculate the regression. STAT>CALC> and select your option from either 4,5,6,7,8,9,0, A, B or C. Reply Link to post Share on other sites More sharing options...
buccaneer247 Posted March 1, 2009 Report Share Posted March 1, 2009 If this is for the SL IA then you can get zgrapher and it has a line regression function on their. Its a free download and can save a lot of time trying to transfer data. Reply Link to post Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.