Question about Casio FX83ES Scientific Calculator

# How to calculate correlation coefficient on a casio calculator?

Posted by on

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Posted on Jan 02, 2017

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

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

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

Although the coefficient of correlation is well defined for a few regression models, you do not calculate it directly because your calculator does that for you.
I could just tell you that it is displayed along with the statistical results (equation of best fitting curve, ) but if you do not know how to do that you will just shoot my post. If you know how to do a linear regression, stop right here and ignore what follows.

For those interested: How to do a regression on the calculator
I am sorry but I will have to assume that you know how to enter the data through the [MENU][STAT].

1. After you finish entering all the data
2. Press [F1:Graph], select Gph1, Gph2, or Gph3.
3. Once the graph of the experimental data is drawn, you will have access to the diverse regression models.
5. [X:Linear]
6. [Med-Med],
8. [Cubic;X^3]
9. [Quartic: X^4].
10. Press [F6] to scroll right to access the others
11. [Logarithmic:LOG],
12. [Exponential :EXP],
13. [Power :Pwr] and
14. [Sinusoidal: Sin]
After you select a model and press [EXE], the screen displays the equation and its various coefficients, a correlation coefficient if it has meaning, etc.
On that same screen, you have a menu option [F6:Draw]. If you select it, the regression curve will be drawn on the same screen as your statistical graph. This allows you to judge if the fit is good. If it is not, you have the option to choose another model.
The other option [F5:Copy] allows you to save the regression equation in the Y1, Y2, etc. variables.

Posted on Jan 03, 2010

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## Related Questions:

### How do I turn the diagnostics on

You are confusing different technologies. In The TI8x family of calculators, you need to turn Diagnostics On to get R and R^2. On the Casios, if a correlation coefficient is defined it will be displayed by default with other statistics.

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### How do i type the letter r on a casio calculator

It it is a graphing calculator, the sequence ALPHA 6 should enter the letter r on the command line. For scientific calculator, the r is a system variable that holds the correlation coefficient for some regression models.

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Find the formula for the correlation coefficient and use the calculator to calculate it.
You can also use the calculator to do statistics. It has some keys to retrieve the statistical values calculated. You will find r among them.

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### How to turn on diagnostic on casio fx cg 10

You got yourself a prizm, learn to use it and forget about the TI84 Plus. The DiagnosticsON is a command of the TI8 84 plus. You can activate it for statistics or deactivate it. For the Casios, the determination coefficient or the correlation factors are always displayed. If the regression model you are using has a correlation coefficient it will be displayed on the same screen the statistical values are displayed.

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### How do you do turn on diagnostics with a casio fx-9750g plus?

You don't do anything for the Casios.. If the correlation and determination coefficients have a meaning in the regression model (such as linear regression) they will be calculated and displayed automatically on the same screen where the regression equation is displayed. However if the regression model has no such coefficients nothing will be displayed.

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### Am trying to calculate corelation on a Casio fx-9750GII,

Use arrows to highlight STAT icon and press EXE.
Enter your data in two lists (x-values in L1, Y-values in L2)
Press F2 to activate the CALC Tab at the bottom of screen.

This is what you see.

Press F3 to activate the REGression tab.
This is what you will see: the TABs at the bottom of screen.
Each tab corresponds to a regression model: X-linear, X2 quadratic, etc.

If you press F3:X^2, you get the following

You see the parameters of the regression equation, the coefficient of determination r^2, and the Mean Square error. No correlation coefficient is defined for this regression model.
For other models like linear, logarithmic, power and exponential regressions, the correlation coefficient is defined and is thus displayed with the regression equation. It is the r-value.

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### How to calculate the coefficient of linear correlation using casio cfx-9850 Ga plus

Although the coefficient of correlation is well defined for a few regression models, you do not calculate it directly because your calculator does that for you.
I could just tell you that it is displayed along with the statistical results (equation of best fitting curve, ) but if you do not know how to do that you will just shoot my post. If you know how to do a linear regression, stop right here and ignore what follows.

For those interested: How to do a regression on the calculator
I am sorry but I will have to assume that you know how to enter the data through the [MENU][STAT].

1. After you finish entering all the data
2. Press [F1:Graph], select Gph1, Gph2, or Gph3.
3. Once the graph of the experimental data is drawn, you will have access to the diverse regression models.
5. [X:Linear]
6. [Med-Med],
8. [Cubic;X^3]
9. [Quartic: X^4].
10. Press [F6] to scroll right to access the others
11. [Logarithmic:LOG],
12. [Exponential :EXP],
13. [Power :Pwr] and
14. [Sinusoidal: Sin]
After you select a model and press [EXE], the screen displays the equation and its various coefficients, a correlation coefficient if it has meaning, etc.
On that same screen, you have a menu option [F6:Draw]. If you select it, the regression curve will be drawn on the same screen as your statistical graph. This allows you to judge if the fit is good. If it is not, you have the option to choose another model.
The other option [F5:Copy] allows you to save the regression equation in the Y1, Y2, etc. variables.

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### How do I find the correlation coefficient on my 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.

Sep 26, 2009 | Casio CFX-9850G Plus Calculator

### 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)

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