Question about Texas Instruments TI-84 Plus Calculator

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The drawing of the scatter plot proper is explained in the last part (Part F). You might want to jump right to it.

Before
doing statistics, you have to prepare the calculator by clearing old
data that may generate errors.

A. TO CLEAR OLD DATA

- Press [2nd][+] (MEM) to open the memory management screen.
- Press [4:ClrAllLists]
- The command echoes on main screen, press [ENTER] to run it.
- Calculator displays Done.

- Press [STAT][5:SetUpEditor] [ENTER] ; calculator displays Done.

To obtain the correlation coefficient in a statistical analysis on the TI8xPlus family of calculators you must activate the DIAGNOSTICSON option. To access the command

- You press [2nd] [0] (CATALOG)
- While the list of commands is displayed, press [X^-1] (D)
- Cursor jumps to first command that starts with D, dayOfWk(
- Press the DownArrow 9 times to reach DIAGNOSTICSON
- Select it and press [ENTER]
- Command echoes on main calculator screen with blinking cursor
- Press [ENTER] to set the option
- Calculator displays Done.

D. ENTER THE DATA

Press [STAT][1:Edit]

Type in your D (X ) values in L1 and the N (Y) values in L2 (see picture 1). Sorry the picture does not have YOUR values.

TO OBTAIN statistical RESULTS (optional)

- After you finish entering the data, press [2nd][Quit] to exit StatEditor.
- Press [STAT] and highlight Menu (CALC)
- In the list select [2:2-Var Stats]
- Command echoes on main screen.
- Press [ENTER] to calculate the stats

Notice the Down Arrow next to n=7. That means the results screen has more values. Press the Down Arrow to display.

You notice that the n=7 line now has an arrow pointing Up. Notice the Down Arrow on the bottom line (more data is coming). Here is the rest of the statistcreate a scatter plot of - 37fb2ba.jpgs.

There is no arrow at the bottom of the picture. End of statistical results.

The screen captures with 2-Var Stats summarize all the statistics.

However there is no correlation coefficient, no line of best fit, etc. To obtain that you have To perform a regression analysis.

E. PERFORM A REGRESSION ANALYSIS

To perform a regression analysis, you must try several regression models and then find the one that mimicks the raw data best. Select Regression model (Example Exponential, linear, sine, quadratic, etc.) Here I selected Exponential

- Press [STAT] , highlight [CALC]
- In the list of regression models select [0:ExpReg]
- The command ExpReg echoes on main calculator screen.
- If you press [ENTER] you will get your equation but you will not be able to draw the curve on top of your data to verify the goodness (no it is not a swear word) of the fit. So you must save the equation as a function in Y1 variable.
- While ExpReg command is still in command line, press the [VARS] key.
- Highlight the [Y-VARS] menu and select [1:Function], then press [ENTER].
- In the Y function variable list select [1:Y1]
- At the command line, you have ExpReg Y1.
- Press [ENTER] to save the equation of best fit in Y1.

You also have r and its square.

Since the equation is saved in the Y1 function it can be superposed on the scatter plot. You just have to press GRAPH and it will be drawn. But that will not tell how good the fit is, until you see the function drawn on top of the raw data.

F. DRAWING THE SCATTER PLOT AND BEST FIT CURVE ON SAME SCREEN

Regardless of the curve of best fit, you can draw a scatter plot as follows.

- Press [2nd][Y=] (STATPLOT)
- Select [1:Plot1...Off] and press ENTER to open plot1 configuration screen
- Use arrow to highlight On and press ENTER
- Use the Down Arrow to move cursor to the line Type.
- Select the first icon for a scatter plot. NOTE: To navigate the 6 statistical stat plots on the line Type, use the right or left arrow (to backtrack), but not create a scatter plot of - b3dea28.jpgown arrows.

Here plot1 is active (ON), it is scatter plot (first icon) the XLIST is L1 by default but you can change it to some other list. Notice the highlighted A cursor on XLIST line. It means that the [ALPHA] keyboard is active.

On the line Mark you can choose the appearance of the raw data point.

And here are your two graphs: the raw data scatter plot and the line of best fcreate a scatter plot of - d6e8e98.jpgame screen. On the picture the ZoomStat option was used.

Now, it is up to you to accept this model or to try another model.

Posted on Nov 09, 2010

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Posted on Jan 02, 2017

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SOURCE: steps from manual on how to do stemp plot box

To make a plot, first you will need to define a list. To do this, press "{", then enter the values of your list, separating each value with a comma, and ending the list with "}" then store (STO>) the list into a list variable ("2nd" + "1", "2", etc.). For a box plot, you will need only one list, and for a scatter plot, you will need two. One for the independent variable, and one for the response variable; that is, one for the X and Y axis, respectively. To make your plot, open the plot menu ("2nd" + "Y=") and select a plot. From there, you may select the type of plot and which lists to use as values.

To find the residuals for the line of best fit, from the home screen, press "STAT", then move one right to "CALC", then select option 4, "LinReg(ax+b)". Once this command is on your home screen, follow it with your X and Y axis lists, separated by a comma, eg: "LinReg(ax+b) L1, L2". Press enter. In a moment, you will be provided with 'a' and 'b' values. Plug those residuals into your "Y=" menu in the form "ax+b", replacing 'a' and 'b' with the residuals, and the line of best fit will be drawn across your graph.

Posted on Nov 12, 2009

SOURCE: How do I create a scatter plot?

The drawing of the scatter plot proper is explained in the last part (Part F). You might want to jump right to it.

Before
doing statistics, you have to prepare the calculator by clearing old
data that may generate errors.

A. TO CLEAR OLD DATA

- Press [2nd][+] (MEM) to open the memory management screen.
- Press [4:ClrAllLists]
- The command echoes on main screen, press [ENTER] to run it.
- Calculator displays Done.

- Press [STAT][5:SetUpEditor] [ENTER] ; calculator displays Done.

To obtain the correlation coefficient in a statistical analysis on the TI8xPlus family of calculators you must activate the DIAGNOSTICSON option. To access the command

- You press [2nd] [0] (CATALOG)
- While the list of commands is displayed, press [X^-1] (D)
- Cursor jumps to first command that starts with D, dayOfWk(
- Press the DownArrow 9 times to reach DIAGNOSTICSON
- Select it and press [ENTER]
- Command echoes on main calculator screen with blinking cursor
- Press [ENTER] to set the option
- Calculator displays Done.

D. ENTER THE DATA

Press [STAT][1:Edit]

Type in your D (X ) values in L1 and the N (Y) values in L2 (see picture 1). Sorry the picture does not have YOUR values.

TO OBTAIN statistical RESULTS (optional)

- After you finish entering the data, press [2nd][Quit] to exit StatEditor.
- Press [STAT] and highlight Menu (CALC)
- In the list select [2:2-Var Stats]
- Command echoes on main screen.
- Press [ENTER] to calculate the stats

Notice the Down Arrow next to n=7. That means the results screen has more values. Press the Down Arrow to display.

You notice that the n=7 line now has an arrow pointing Up. Notice the Down Arrow on the bottom line (more data is coming). Here is the rest of the statistical results.

There is no arrow at the bottom of the picture. End of statistical results.

The screen captures with 2-Var Stats summarize all the statistics.

However there is no correlation coefficient, no line of best fit, etc. To obtain that you have To perform a regression analysis.

E. PERFORM A REGRESSION ANALYSIS

To perform a regression analysis, you must try several regression models and then find the one that mimicks the raw data best. Select Regression model (Exeample Esponential, linear, sine, quadratic, etc.) Here I selected Exponential

- Press [STAT] , highlight [CALC]
- In the list of regression models select [0:ExpReg]
- The command ExpReg echoes on main calculator screen.
- If you press [ENTER] you will get you equation but you will not be able to draw the curve on top of your data to verify the goodness (no it is not a swear word) of the fit. So you must save the equation as a function in Y1 variable.
- While ExpReg command is still in command line, press the [VARS] key.
- Highlight the [Y-VARS] menu and select [1:Function], then press [ENTER].
- In the Y function variable list select [1:Y1]
- At the command line, you have ExpReg Y1.
- Press [ENTER] to save the equation of best fit in Y1.

You also have r and its square.

Since the equation is saved in the Y1 function it can be superposed on the scatter plot. You just have to press GRAPH and it will be drawn. But that will not tell how good the fit is, until you see the function drawn on top of the raw data.

F. DRAWING THE SCATTER PLOT AND BEST FIT CURVE ON SAME SCREEN

Regardless of the curve of best fit, you can draw a scatter plot as follows.

- Press [2nd][Y=] (STATPLOT)
- Select [1:Plot1...Off] and press ENTER to open plot1 configuration screen
- Use arrow to highlight On and press ENTER
- Use the Down Arrow to move cursor to the line Type.
- Select the first icon for a scatter plot. NOTE: To navigate the 6 statistical stat plots on the line Type, use the right or left arrow (to backtrack), but not the Up or down arrows.

Here plot1 is active (ON), it is scatter plot (first icon) the XLIST is L1 by default but you can change it to some other list. Notice the highlighted A cursor on XLIST line. It means that the [ALPHA] keyboard is active.

On the line Mark you can choose the appearance of the raw data point.

And here are your two graphs: the raw data scatter plot and the line of best fit on the same screen. On the picture the ZoomStat option was used.

Now, it is up to you to accept this model or to try another model.

Comments: Apr 19, 2010 - I tried to edit the post to address your particular need but after several crashes I decided to paste it as is.

The particular parts that are of concern to you are Part E (performing a regression analysis) and the following one where the best fit and the dcatter plot are superposed on the same display.

As you have guessed you must select QuadReg.

Posted on May 02, 2010

Try to set the Zoom window to ZoomStat, this way the scatter plot will display all statistical points in the data set.

Oct 06, 2013 | Texas Instruments TI-84 Plus Silver...

Your data must be in two lists L1 (for x-values), and L2 (for y-values). This is the default setting. Open the STAT utility, go to the regression models. Select your model then press ENTER. The command echoes on the main screen. For example let the regression be something called **LinReg.**

On the main screen you see**LinReg**

Complete the command line as follows

**LinReg L1, L2, Y1, ENTER**

You see the statistics including the regression equation.

If you go to**Y= **Editor you will see that **Y1 **contains the regression equation.

If you have already drawn the**scatter plot** for your data, pressing GRAPH will superpose the scatter plot and the **regression curve**., and you will be able to judge the goodness of the fit.

On the main screen you see

Complete the command line as follows

You see the statistics including the regression equation.

If you go to

If you have already drawn the

Sep 28, 2013 | Texas Instruments TI-84 Plus Silver...

The simplest way would be to create a table where each x-value has a y-value that is the residual at the corresponding x. With a 2-list data set you can plot you residual plot.

Sep 22, 2013 | Texas Instruments TI-86 Calculator

Usually ypu know the equation then graph it. However in doing statistics, it may appear that the curve of best for a scatter plot could be could an exponential. In that case you use the STAT application to enter the x-data in List 1 and the y-data in List 2. When you finish press the f1 key to select Graph1. You should also verify by Pressing F6:set that the graph type is set to scatter, and that List 1 contains the x-data and List 2, the y-data. After you verify that all is in order press the F1: Graph 1 key.

As the graph is displayed you will see several tabs with various regression models. Pan thr tabs to the right to get to F2:EXP. Select it.

The equation is displayed on the next screen. At the bottom of the screen you see two tabs COPY and DRAW. Press f5:Copy to copy the equation in one of the y= functions.

Press Draw and you will see the curve of best fit superposed on the scatter plot points.

As the graph is displayed you will see several tabs with various regression models. Pan thr tabs to the right to get to F2:EXP. Select it.

The equation is displayed on the next screen. At the bottom of the screen you see two tabs COPY and DRAW. Press f5:Copy to copy the equation in one of the y= functions.

Press Draw and you will see the curve of best fit superposed on the scatter plot points.

Aug 23, 2011 | Casio FX-9750GPlus Calculator

To clean the slate so to speak, just reset the RAM.

Calc

- Press [2nd][+] to access the (MEM)ory management function
- Press [7:Reset]
- Press [1:All Ram]
- Press [2:Reset]
- Press [CLEAR] to erase the "RAM cleared" Message

Calc

Aug 02, 2010 | Texas Instruments TI-83 Plus Calculator

It is most likely that the lists you are using as input data are of unequal lengths: One has fewer elements than the other.

I just created a small data set in two lists of unequal length. I was able to draw the scatter plot, but when I wanted to get a regression curve the error message popped up.

I just created a small data set in two lists of unequal length. I was able to draw the scatter plot, but when I wanted to get a regression curve the error message popped up.

Jul 09, 2010 | Casio FX-9860G Graphic Calculator

The drawing of the scatter plot proper is explained in the last part (Part F). You might want to jump right to it.

Before doing statistics, you have to prepare the calculator by clearing old data that may generate errors.

A. TO CLEAR OLD DATA

To obtain the correlation coefficient in a statistical analysis on the TI8xPlus family of calculators you must activate the DIAGNOSTICSON option. To access the command

D. ENTER THE DATA

Press [STAT][1:Edit]

Type in your D (X ) values in L1 and the N (Y) values in L2 (see picture 1). Sorry the picture does not have YOUR values.

TO OBTAIN statistical RESULTS (optional)

Notice the Down Arrow next to n=7. That means the results screen has more values. Press the Down Arrow to display.

You notice that the n=7 line now has an arrow pointing Up. Notice the Down Arrow on the bottom line (more data is coming). Here is the rest of the statistical results.

There is no arrow at the bottom of the picture. End of statistical results.

The screen captures with 2-Var Stats summarize all the statistics.

However there is no correlation coefficient, no line of best fit, etc. To obtain that you have To perform a regression analysis.

E. PERFORM A REGRESSION ANALYSIS

To perform a regression analysis, you must try several regression models and then find the one that mimicks the raw data best. Select Regression model (Exeample Esponential, linear, sine, quadratic, etc.) Here I selected Exponential

You also have r and its square.

Since the equation is saved in the Y1 function it can be superposed on the scatter plot. You just have to press GRAPH and it will be drawn. But that will not tell how good the fit is, until you see the function drawn on top of the raw data.

F. DRAWING THE SCATTER PLOT AND BEST FIT CURVE ON SAME SCREEN

Regardless of the curve of best fit, you can draw a scatter plot as follows.

Here plot1 is active (ON), it is scatter plot (first icon) the XLIST is L1 by default but you can change it to some other list. Notice the highlighted A cursor on XLIST line. It means that the [ALPHA] keyboard is active.

On the line Mark you can choose the appearance of the raw data point.

And here are your two graphs: the raw data scatter plot and the line of best fit on the same screen. On the picture the ZoomStat option was used.

Now, it is up to you to accept this model or to try another model.

Comments: Apr 19, 2010 - I tried to edit the post to address your particular need but after several crashes I decided to paste it as is.

The particular parts that are of concern to you are Part E (performing a regression analysis) and the following one where the best fit and the dcatter plot are superposed on the same display.

As you have guessed you must select QuadReg.

Before doing statistics, you have to prepare the calculator by clearing old data that may generate errors.

A. TO CLEAR OLD DATA

- Press [2nd][+] (MEM) to open the memory management screen.
- Press [4:ClrAllLists]
- The command echoes on main screen, press [ENTER] to run it.
- Calculator displays Done.

- Press [STAT][5:SetUpEditor] [ENTER] ; calculator displays Done.

To obtain the correlation coefficient in a statistical analysis on the TI8xPlus family of calculators you must activate the DIAGNOSTICSON option. To access the command

- You press [2nd] [0] (CATALOG)
- While the list of commands is displayed, press [X^-1] (D)
- Cursor jumps to first command that starts with D, dayOfWk(
- Press the DownArrow 9 times to reach DIAGNOSTICSON
- Select it and press [ENTER]
- Command echoes on main calculator screen with blinking cursor
- Press [ENTER] to set the option
- Calculator displays Done.

D. ENTER THE DATA

Press [STAT][1:Edit]

Type in your D (X ) values in L1 and the N (Y) values in L2 (see picture 1). Sorry the picture does not have YOUR values.

TO OBTAIN statistical RESULTS (optional)

- After you finish entering the data, press [2nd][Quit] to exit StatEditor.
- Press [STAT] and highlight Menu (CALC)
- In the list select [2:2-Var Stats]
- Command echoes on main screen.
- Press [ENTER] to calculate the stats

Notice the Down Arrow next to n=7. That means the results screen has more values. Press the Down Arrow to display.

You notice that the n=7 line now has an arrow pointing Up. Notice the Down Arrow on the bottom line (more data is coming). Here is the rest of the statistical results.

There is no arrow at the bottom of the picture. End of statistical results.

The screen captures with 2-Var Stats summarize all the statistics.

However there is no correlation coefficient, no line of best fit, etc. To obtain that you have To perform a regression analysis.

E. PERFORM A REGRESSION ANALYSIS

To perform a regression analysis, you must try several regression models and then find the one that mimicks the raw data best. Select Regression model (Exeample Esponential, linear, sine, quadratic, etc.) Here I selected Exponential

- Press [STAT] , highlight [CALC]
- In the list of regression models select [0:ExpReg]
- The command ExpReg echoes on main calculator screen.
- If you press [ENTER] you will get you equation but you will not be able to draw the curve on top of your data to verify the goodness (no it is not a swear word) of the fit. So you must save the equation as a function in Y1 variable.
- While ExpReg command is still in command line, press the [VARS] key.
- Highlight the [Y-VARS] menu and select [1:Function], then press [ENTER].
- In the Y function variable list select [1:Y1]
- At the command line, you have ExpReg Y1.
- Press [ENTER] to save the equation of best fit in Y1.

You also have r and its square.

Since the equation is saved in the Y1 function it can be superposed on the scatter plot. You just have to press GRAPH and it will be drawn. But that will not tell how good the fit is, until you see the function drawn on top of the raw data.

F. DRAWING THE SCATTER PLOT AND BEST FIT CURVE ON SAME SCREEN

Regardless of the curve of best fit, you can draw a scatter plot as follows.

- Press [2nd][Y=] (STATPLOT)
- Select [1:Plot1...Off] and press ENTER to open plot1 configuration screen
- Use arrow to highlight On and press ENTER
- Use the Down Arrow to move cursor to the line Type.
- Select the first icon for a scatter plot. NOTE: To navigate the 6 statistical stat plots on the line Type, use the right or left arrow (to backtrack), but not the Up or down arrows.

Here plot1 is active (ON), it is scatter plot (first icon) the XLIST is L1 by default but you can change it to some other list. Notice the highlighted A cursor on XLIST line. It means that the [ALPHA] keyboard is active.

On the line Mark you can choose the appearance of the raw data point.

And here are your two graphs: the raw data scatter plot and the line of best fit on the same screen. On the picture the ZoomStat option was used.

Now, it is up to you to accept this model or to try another model.

Comments: Apr 19, 2010 - I tried to edit the post to address your particular need but after several crashes I decided to paste it as is.

The particular parts that are of concern to you are Part E (performing a regression analysis) and the following one where the best fit and the dcatter plot are superposed on the same display.

As you have guessed you must select QuadReg.

Apr 30, 2010 | Texas Instruments TI-84 Plus Calculator

Hi,

From what I understand you want to draw statistical graphs (scatter plot, box plot, etc.) If you do not see anything it may be due to the fact that the statistical plots are turned off.

Type in the data in lists L1 and L2, etc. Press [2nd][QUIT]

Press [2nd][Y=] (STAT PLOT] . Select [4:PlotsOff] [ENTER] .

Screen displays** Done **

**Press [2nd][Y=] (STAT PLOT] . Select [1:Plot1 Off]. **

Hope it helps.

Thank you for rating the solution.

From what I understand you want to draw statistical graphs (scatter plot, box plot, etc.) If you do not see anything it may be due to the fact that the statistical plots are turned off.

Type in the data in lists L1 and L2, etc. Press [2nd][QUIT]

Press [2nd][Y=] (STAT PLOT] . Select [4:PlotsOff] [ENTER] .

Screen displays

- The configuration screen for Plot1 opens with the cursor blinking ON.
- Press [ENTER] to turn Plot1 ON.
- Use Down Arrow to move cursor to second line Type:
- Select the type of statistical plot. Use the right arrow to move highlight on one of the 6 types.
- Select the type:scatter, Xline, histogram, box plot, and press [ENTER] to validate the choisce.
- Use down arrow to select the Xlist: use [2nd][1] to choose L1, etc. and press [ENTER]
- Select the Y-List (L2) and validate by pressing [ENTER]
- Select the data-point mark.
- Press [GRAPH].

Hope it helps.

Thank you for rating the solution.

Dec 09, 2009 | Texas Instruments TI-83 Plus Calculator

Hi,

From what I understand you want to draw statistical graphs (scatter plot, box plot, etc.) and you window is set up correctly. Usually, one must first see agraph and adjust the window, but no matter.

If you do not see anything it may be due to the fact thea the statistical plots are turned off.

Type in the data in lists L1 and L2, etc. Press [2nd][QUIT]

Press [2nd][Y=] (STAT PLOT] . Select [4:PlotsOff] [ENTER] .

Screen displays** Done **

**Press [2nd][Y=] (STAT PLOT] . Select [1:Plot1 Off]. **

Hope it helps.

Thank you for rating the solution.

From what I understand you want to draw statistical graphs (scatter plot, box plot, etc.) and you window is set up correctly. Usually, one must first see agraph and adjust the window, but no matter.

If you do not see anything it may be due to the fact thea the statistical plots are turned off.

Type in the data in lists L1 and L2, etc. Press [2nd][QUIT]

Press [2nd][Y=] (STAT PLOT] . Select [4:PlotsOff] [ENTER] .

Screen displays

- The configuration screen for Plot1 opens with the cursor blinking ON.
- Press [ENTER] to turn Plot1 ON.
- Use Down Arrow to move cursor to second line Type:
- Select the type of statistical plot. Use the right arrow to move highlight on one of the 6 types.
- Select the type:scatter, Xline, histogram, box plot, and press [ENTER] to validate the choisce.
- Use down arrow to select the Xlist: use [2nd][1] to choose L1, etc. and press [ENTER]
- Select the Y-List (L2) and validate by pressing [ENTER]
- Select the data-point mark.
- Press [GRAPH].

Hope it helps.

Thank you for rating the solution.

Dec 06, 2009 | Texas Instruments TI-83 Plus Calculator

You create a program by using the program editor. Press the "APPS" key and select "Program Editor".

What type of data graph do you want? The TI-89 can plot Scatter, XYline, Box, and Histgram graphs. Use the "Plot Setup" screen to select the desired plot type.

What type of data graph do you want? The TI-89 can plot Scatter, XYline, Box, and Histgram graphs. Use the "Plot Setup" screen to select the desired plot type.

Apr 17, 2008 | Texas Instruments TI-89 Calculator

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