Question about Texas Instruments TI-84 Plus Calculator

2 Answers

How do I create a scatter plot? - Texas Instruments TI-84 Plus Calculator

Posted by on

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    One Above All:

    The expert with highest point at the last day of the past 12 weeks.

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

  • Texas Instru... Master
  • 102,366 Answers

Follow the instructions in the "Statistics" chapter of the Guidebook. If you don't have your Guidebook handy, you can download it from the manufacturer's web site at http://education.ti.com

Posted on Apr 30, 2010

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Texas Instru... Master
  • 7,993 Answers

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

  1. Press [2nd][+] (MEM) to open the memory management screen.
  2. Press [4:ClrAllLists]
  3. The command echoes on main screen, press [ENTER] to run it.
  4. Calculator displays Done.
B. RUN the SETUP EDITOR Command
  1. Press [STAT][5:SetUpEditor] [ENTER] ; calculator displays Done.
C. TURN DIAGNOSTICSON option (optional)

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
  1. You press [2nd] [0] (CATALOG)
  2. While the list of commands is displayed, press [X^-1] (D)
  3. Cursor jumps to first command that starts with D, dayOfWk(
  4. Press the DownArrow 9 times to reach DIAGNOSTICSON
  5. Select it and press [ENTER]
  6. Command echoes on main calculator screen with blinking cursor
  7. Press [ENTER] to set the option
  8. Calculator displays Done.
From now on, if a correlation coefficient has meaning for a regression model, it will be calculated along with the other statistical results. If it has no meaning to the model it will not be calculated.

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.
How do I create a scatter plot? - 894afd6.jpg

TO OBTAIN statistical RESULTS (optional)
  1. After you finish entering the data, press [2nd][Quit] to exit StatEditor.
  2. Press [STAT] and highlight Menu (CALC)
  3. In the list select [2:2-Var Stats]
  4. Command echoes on main screen.
  5. Press [ENTER] to calculate the stats
Here is what you get (THESE~ARE NOT YOUR RESULTS). Your results will be different.
f2d3743.jpg
Notice the Down Arrow next to n=7. That means the results screen has more values. Press the Down Arrow to display.How do I create a scatter plot? - ab847d7.jpgsrc="http://i.fixya.net/uploads/images/ab847d7.jpg" alt="ab847d7.jpg" class="h_mi" />
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 theHow do I create a scatter plot? - 37fb2ba.jpge statistical results.
37fb2ba.jpg
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
  1. Press [STAT] , highlight [CALC]
  2. In the list of regression models select [0:ExpReg]
  3. The command ExpReg echoes on main calculator screen.
  4. 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.
  5. While ExpReg command is still in command line, press the [VARS] key.
  6. Highlight the [Y-VARS] menu and select [1:Function], then press [ENTER].
  7. In the Y function variable list select [1:Y1]
  8. At the command line, you have ExpReg Y1.
  9. Press [ENTER] to save the equation of best fit in Y1.f07d40f.jpg
    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.
    1. Press [2nd][Y=] (STATPLOT)
    2. Select [1:Plot1...Off] and press ENTER to open plot1 configuration screen
    3. Use arrow to highlight On and press ENTER
    4. Use the Down Arrow to move cursor to the line Type.
    5. Select the first icon for a scatter plot. NOTE: To navigate the 6 statistical stat plots on the line Type, use the right or lefHow do I create a scatter plot? - b3dea28.jpg backtrack), but not the Up or down arrows.
    Here is the configuration screen
    b3dea28.jpg
    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 grapHow do I create a scatter plot? - d6e8e98.jpg data scatter plot and the line of best fit on the same screen. On the picture the ZoomStat option was used.
    d6e8e98.jpg

    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

Ad

3 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

  • 7993 Answers

SOURCE: When I try to graph a scatter plot from 2 lists, I

Hello,
Press [2nd][STAPLOTS][4:StatPlots Off] [ENTER][ENTER].
Press [STAT][5:SetUp Editor] [ENTER]ENTER]

Configure the statpolt as in the picture (for a scatter plot)
4859484.jpg
Restart you statistical graphing.
If that does not solve the problem, reset the RAM
Press [2nd][MEM][7:Reset][1:All Ram][2:Reset][ENTER], then [CLEAR] the message on screen.

Hope it helps.

Posted on Oct 29, 2009

  • 10 Answers

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I can't see all of plotted points in scatter plot


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...

1 Answer

Why can't i see the plotted points when i try to graph my L1 in a scatter-plot?


You cannot have a scatter plot with just one variable. You need values in L1 and values in L2. If you have only one set of values you can do 1-var statistics and plot a histogram (x-value vs. frequency).

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

1 Answer

How do you make a residual plot? And I don't mean finding the residual line and plotting it in a regular scatter plot. I'm talking about a residual plot with a horizontal regression line at zero and the...


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

1 Answer

I am entering information from a sample question for drawing a scatterplot and finding the linear regression equation. I have copied the example exactly and keep coming up with the same two problems. 1. I...


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...

1 Answer

Create a scatter plot of the data


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
  1. Press [2nd][+] (MEM) to open the memory management screen.
  2. Press [4:ClrAllLists]
  3. The command echoes on main screen, press [ENTER] to run it.
  4. Calculator displays Done.
B. RUN the SETUP EDITOR Command
  1. Press [STAT][5:SetUpEditor] [ENTER] ; calculator displays Done.
C. TURN DIAGNOSTICSON option (optional)

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
  1. You press [2nd] [0] (CATALOG)
  2. While the list of commands is displayed, press [X^-1] (D)
  3. Cursor jumps to first command that starts with D, dayOfWk(
  4. Press the DownArrow 9 times to reach DIAGNOSTICSON
  5. Select it and press [ENTER]
  6. Command echoes on main calculator screen with blinking cursor
  7. Press [ENTER] to set the option
  8. Calculator displays Done.
From now on, if a correlation coefficient has meaning for a regression model, it will be calculated along with the other statistical results. If it has no meaning to the model it will not be calculated.

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.
894afd6.jpg

TO OBTAIN statistical RESULTS (optional)
  1. After you finish entering the data, press [2nd][Quit] to exit StatEditor.
  2. Press [STAT] and highlight Menu (CALC)
  3. In the list select [2:2-Var Stats]
  4. Command echoes on main screen.
  5. Press [ENTER] to calculate the stats
Here is what you get (THESE~ARE NOT YOUR RESULTS). Your results will be different.
f2d3743.jpg
Notice the Down Arrow next to n=7. That means the results screen has more values. Press the Down Arrow to display.
ab847d7.jpg
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.
37fb2ba.jpg
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
  1. Press [STAT] , highlight [CALC]
  2. In the list of regression models select [0:ExpReg]
  3. The command ExpReg echoes on main calculator screen.
  4. 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.
  5. While ExpReg command is still in command line, press the [VARS] key.
  6. Highlight the [Y-VARS] menu and select [1:Function], then press [ENTER].
  7. In the Y function variable list select [1:Y1]
  8. At the command line, you have ExpReg Y1.
  9. Press [ENTER] to save the equation of best fit in Y1.
Here are your results. (These are your actual results)
f07d40f.jpg
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.
  1. Press [2nd][Y=] (STATPLOT)
  2. Select [1:Plot1...Off] and press ENTER to open plot1 configuration screen
  3. Use arrow to highlight On and press ENTER
  4. Use the Down Arrow to move cursor to the line Type.
  5. 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 is the configuration screen
b3dea28.jpg
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.
d6e8e98.jpg

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

Nov 06, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

I entered a scatter plot on my t 84 calculator, and now i can't graph anythin else


Turn off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

Sep 23, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

Err:invalid dim while trying to make a scatter plot


You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

Sep 12, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

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.

Nov 11, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

When I try to graph a scatter plot from 2 lists, I get err: undefined


Hello,
Press [2nd][STAPLOTS][4:StatPlots Off] [ENTER][ENTER].
Press [STAT][5:SetUp Editor] [ENTER]ENTER]

Configure the statpolt as in the picture (for a scatter plot)
4859484.jpg
Restart you statistical graphing.
If that does not solve the problem, reset the RAM
Press [2nd][MEM][7:Reset][1:All Ram][2:Reset][ENTER], then [CLEAR] the message on screen.

Hope it helps.

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

1 Answer

Ti-89 help


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.

Apr 17, 2008 | Texas Instruments TI-89 Calculator

Not finding what you are looking for?
Texas Instruments TI-84 Plus Calculator Logo

438 people viewed this question

Ask a Question

Usually answered in minutes!

Top Texas Instruments Office Equipment & Supplies Experts

kakima

Level 3 Expert

102366 Answers

k24674

Level 3 Expert

7993 Answers

Stevan Milanovic

Level 2 Expert

263 Answers

Are you a Texas Instruments Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...