Question about Texas Instruments TI-83+ Graphing Calculator (TEX83PL)

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Press the STAT key, then right-arrow. LinReg is the fourth item on the menu.

Posted on Mar 03, 2011

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Posted on Jan 02, 2017

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You should check your manual. The FX300MS has only three calculation modes: COMP (regular calculator), SD (standard deviation) and REG (statistical regression analysis). You cannot solve equations.

Apr 28, 2016 | Casio FX300MS Scientific Calculator

After you enter the data draw the SCATTER plot first.

When you perform the (linear) regression analysis LineReg, save the regression equation to a function, for example Y1

The syntax is

LineReg L1, L2, Y1 ENTER

From the Stat>CALC menu press LineReg

The command echoes on command line

Press [2nd][1] to enter the L1 list on command line

Press [,] to separate

Press [2nd] [2] to enter L2 on the command line

Press [,] the comma again

Press [VARS][>][Y-Vars][1~Function][1:Y1] [ENTER]

Press [GRAPH] to have the regression line equation drawn

on the same screen as the Scatter Plot you drew before.

When you perform the (linear) regression analysis LineReg, save the regression equation to a function, for example Y1

The syntax is

LineReg L1, L2, Y1 ENTER

From the Stat>CALC menu press LineReg

The command echoes on command line

Press [2nd][1] to enter the L1 list on command line

Press [,] to separate

Press [2nd] [2] to enter L2 on the command line

Press [,] the comma again

Press [VARS][>][Y-Vars][1~Function][1:Y1] [ENTER]

Press [GRAPH] to have the regression line equation drawn

on the same screen as the Scatter Plot you drew before.

Sep 13, 2011 | Texas Instruments TI-84 Plus Calculator

Your assumption

--Next, I should be able to press VARS, move to Y-VARS, select FUNCTION, then select Y-1 and automatically enter the equation into Y-1.-

is not correct.

When you press [STAT[>][CALC][4:LinReg(ax+b)] or any other regression model,the command echoes on the main screen. If you press [ENTER] at this point, the calculator uses by default lists L1 and L2 and displays the resulting equation without copying it in a Y-variable.

If you want to have the equation copied on a Y-function, you should modify the command as follows

LineReg(ax+b) [SHIFT][1: L1] [,] SHIFT[2:L2] [,] [VARS][>:Y-Vars] [1:Function][1:Y-1][ENTER].

Here, [>] stands for RightArrow. For any other regression model, use the appropriate command.

At this point, the command line should look like the following:

LinReg(ax+b) L1, L2, Y1

Press [ENTER] to calculate you get the same screen as when you do not save the equation in Y1, but if you go to the Y= editor or press GRAPH, you will see the regression line superposed on the scatter plot.

--Next, I should be able to press VARS, move to Y-VARS, select FUNCTION, then select Y-1 and automatically enter the equation into Y-1.-

is not correct.

When you press [STAT[>][CALC][4:LinReg(ax+b)] or any other regression model,the command echoes on the main screen. If you press [ENTER] at this point, the calculator uses by default lists L1 and L2 and displays the resulting equation without copying it in a Y-variable.

If you want to have the equation copied on a Y-function, you should modify the command as follows

LineReg(ax+b) [SHIFT][1: L1] [,] SHIFT[2:L2] [,] [VARS][>:Y-Vars] [1:Function][1:Y-1][ENTER].

Here, [>] stands for RightArrow. For any other regression model, use the appropriate command.

At this point, the command line should look like the following:

LinReg(ax+b) L1, L2, Y1

Press [ENTER] to calculate you get the same screen as when you do not save the equation in Y1, but if you go to the Y= editor or press GRAPH, you will see the regression line superposed on the scatter plot.

Jul 13, 2011 | Texas Instruments TI-84 Plus Calculator

You might not see the scatter plot when you go to the graph because the boundaries are not set correctly. With the scatter plot turned on, go to "zoom" and then scroll down to "zoomStat" and hit enter. Try going to the graph again and see if the the scatter plot shows up. As for the the equation being slightly different than the examples, this is probably just the calculator rounding up the answers it gets.
Good luck!

Jun 24, 2011 | Texas Instruments TI-84 Plus Silver...

Hi,

You want to solve the equation?

Like 1X+2Y=3

thank you

You want to solve the equation?

Like 1X+2Y=3

thank you

Oct 19, 2010 | Casio FX-115ES Scientific Calculator

The regression equation can be copied automatically in a Yx variable. You need not enter it manually(?).

Example: Suppose you are performing a quadratic regression on data stored in L1 and L2.

Example: Suppose you are performing a quadratic regression on data stored in L1 and L2.

- From the [Stat][

Oct 12, 2010 | Texas Instruments TI-84 Plus Silver...

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].

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.

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].

- After you finish entering all the data
- Press [F1:Graph], select Gph1,
Gph2, or Gph3.
- Once the graph of the experimental data is drawn, you
will have access to the diverse regression models.
- Your choices are
- [X:Linear]
- [Med-Med],
- [Quadratic :X^2]
- [Cubic;X^3]
- [Quartic: X^4].
- Press [F6] to scroll right to access the others
- [Logarithmic:LOG],
- [Exponential :EXP],
- [Power :Pwr] and
- [Sinusoidal: Sin]

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.

Jan 03, 2010 | Casio CFX 9850GA Plus Calculator

Hello,

I am sorry but I will have to assume that you know how to enter the data.

Once you enter your data [MENU][STAT], press [F1:Graph], select Gph1, Gph2, or Gph3. Once the graph of the experimental data is drawn, you will have access to the diverse regression models. Your choices are [X:Linear] [Med-Med], [Quadratic :X^2] [Cubic;X^3] [Quartic: X^2]. Press [F6] to scroll right to access the others: [Logarithmic:LOG], [Exponential :EXP], [Power :Pwr] and [Sinusoidal: Sin]

After you select a model and press [EXE], the screen displays the equation and its various coefficients. 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.

Hope it helps.

I am sorry but I will have to assume that you know how to enter the data.

Once you enter your data [MENU][STAT], press [F1:Graph], select Gph1, Gph2, or Gph3. Once the graph of the experimental data is drawn, you will have access to the diverse regression models. Your choices are [X:Linear] [Med-Med], [Quadratic :X^2] [Cubic;X^3] [Quartic: X^2]. Press [F6] to scroll right to access the others: [Logarithmic:LOG], [Exponential :EXP], [Power :Pwr] and [Sinusoidal: Sin]

After you select a model and press [EXE], the screen displays the equation and its various coefficients. 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.

Hope it helps.

Oct 08, 2009 | Casio FX-9750GPlus Calculator

Hello,

Once you enter your data [MENU][STAT], press [F1:Graph], select Gph1, Gph2, or Gph3. Once the graph of the experimental data is drawn, you will have access to the diverse regression models. Your choices are [X:Linear] [Med-Med], [Quadratic :X^2] [Cubic;X^3] [Quartic: X^2]. Press [F6] to scroll right to access the others: [Logarithmic:LOG], [Exponential :EXP], [Power :Pwr] and [Sinusoidal: Sin]

After you select a model and press [EXE], the screen displays the equation and its various coefficients. 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.

Hope it helps.

Once you enter your data [MENU][STAT], press [F1:Graph], select Gph1, Gph2, or Gph3. Once the graph of the experimental data is drawn, you will have access to the diverse regression models. Your choices are [X:Linear] [Med-Med], [Quadratic :X^2] [Cubic;X^3] [Quartic: X^2]. Press [F6] to scroll right to access the others: [Logarithmic:LOG], [Exponential :EXP], [Power :Pwr] and [Sinusoidal: Sin]

After you select a model and press [EXE], the screen displays the equation and its various coefficients. 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.

Hope it helps.

Oct 02, 2009 | Casio FX-9750GPlus 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.

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

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