Question about Casio CFX-9850G Plus Calculator
Hello,
You will find it on the same screen where you find the regression equation, the regression coefficients etc. However it is not defined for certain types of regressions.
Hope it helps.
Posted on Sep 26, 2009
I do not think you understood what I said. Although there is a formula that defines the correlation coefficient (for certain regression models only) it is not meant to be calculated by hand. You can always try.
Normally, if the correlation coefficient has a meaning for your regression model, it will automatically be calculated by the calculator along with the other regression parameters, and it will be displayed on the same screen (you may have to scroll down to reach it) where the regression equation is displayed.
Usually, people ask for the regression equation, not the correleation coefficient (an advanced topic). When someone asks for the correlation coefficient I assume that the asker already knows how and where to find the regression equation.
If you know how to perform a regression (linear) do it and the correlation coefficient will be displayed along with the a, and b parameters.
If you do not know how to perform a regression analysis, search this web site with a question such as How to do a regression analysis? I am sur you will find a post. I have already answered such question, several times, but I do not feel like searching through more than 200 pages of post to get you a link. The answer is here and you have to spend sometime looking for it.
Next time, if an answer does not solve your problem, do not just be trigger happy and shoot the post, rather post a comment and somebody will help you.
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Posted on Jan 02, 2017
SOURCE: how to calculate the Linear correlation coefficient
go to [2nd] [0] then select [diagnosticon] and click [ENTER] then it atomatically adds it to the LinReg(ax+b)
Posted on Jan 21, 2008
SOURCE: correlation coefficient- how to compute
Turn your "diagnostic on" from the catalog menu
Posted on May 07, 2009
SOURCE: need help to calculate correlation coefficient
Hi,
I don't know if you still need help with this problem but in case you do follow this link:
http://www.mathstore.net/graphing-calculators/TI-calculators/how-to-calculate-the-correlation-coefficient.php
Good luck!
Posted on Jun 15, 2009
SOURCE: Correlation coefficient of sine regression?
Hello,
The correlation coefficient does not have meaning (is not defined) for most regression models. Check you theory to make sure it exits for the sine regression.
An easy way to verify that, is to use the Command DiagnosticOn, accessible through the catalog [2nd][0] (CATALOG) . Press [X^-1] (D) to jump to first command that starts with D. Scroll down to DiagnosticOn, select it and press [ENTER]. Calculator replies Done.
Do your sine regression again. If the correlation coefficient has meaning for this type of regression, you will find it with the other statistical variables. You may have to scroll down the statistical variable list to verify the whole contents of the list.
Hope it helps.
Thank you for rating the solution.
Posted on Dec 15, 2009
SOURCE: My calculator is not showing
Press [2nd][0] to access the CATALOG. Use down arrow to move down the catalog index. You should look for the Command DiagnosticsON. Highlight it and press [ENTER]. When you go back to perform statistical calculations the R and R^2 will be displayed on the same screen where you get the regression equation. (Note: This coefficient is not defined for all the types of regression models. For some it means something and for others it doesn't. If it has meaning for the model it will be displayed).
Posted on Sep 19, 2010
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