Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

I teach high school physics, and students are graping and conducting a LinReg for a set of data stored in lists (e.g. LinReg L3, L2, Y1).

No problem with this, it works great, but one student was getting different values for a, b, r2, r. I checked her lists, and they were all correct. I even tried re-entering all the data, but still got the same results.

I finally cleared the RAM ([MEM] RESET ... All RAM, and now we are getting the right answer.

Any ideas of what might have been wrong?

Thanks.

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Probly because the calc was miscalibrated or someone screwed around with the variables...

hope this helps

Posted on Jun 11, 2008

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Posted on Jan 02, 2017

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Student database Application allows you to manage student and staff data in an intuitive format that ensures data integrity, accurate reporting and quick access to information. Stored data is shared across all modules and other programs at your school. As a result, data is never entered twice and everyone at your school can always access the most up-to-date information.

APDM ( student database application) has many features-

1. Customize the database to manage the information your individual school, school district or diocese needs to track.

2. Each user can customize its layout and navigation to suit their unique job responsibilities and preferences.

3. The report writer supports multiple languages in many reports.

Dec 14, 2017 | Computers & Internet

If you are sure of the details, why not report at the police station so they'd be aware of this potential threat to life?

If there is a Parents Teachers Forum/association for this school, raise this issue up and suggest they beef up security watch within the school premises.

Security guards, CCTVs, etc for a start.

If there is a Parents Teachers Forum/association for this school, raise this issue up and suggest they beef up security watch within the school premises.

Security guards, CCTVs, etc for a start.

Oct 06, 2017 | HIS Computers & Internet

only if that school is islamic school

no difference really to catholic schools teaching that any other religion other than the catholic church has all sinners in the congregation

will not affect you in any way unless they teach anything other than peace

no difference really to catholic schools teaching that any other religion other than the catholic church has all sinners in the congregation

will not affect you in any way unless they teach anything other than peace

Jun 24, 2017 | Computers & Internet

Start here: http://www.geteducated.com/teaching-online-courses/515-online-teaching-job-openings

Feb 26, 2015 | Computers & Internet

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...

I have followed your description and entered bogus data in Lists L1, L2, and L3.

I hit STAT then CALC then Option 1, which is 1-Var Stats. In this context you have only one set of data. If the data set contains many repeated values you can enter the frequency for each (repeated) data item in List L2, inserting 1 if an item is not repeated.

Thus when you do 1-Var Statistics you have at most two Lists (L1 contains the data values, and L2 their frequencies).

If you press the 1-Var Stats calculation option, the calculator takes L1 as the default data list so you see List:L1 and the ALPHA cursor blinking

On the secoond line you see Frequency: and nothing else on the line.

On the third line you have Calculate.

If Your data is not in L1, you can change that by pressing the [2nd][2] (L2), or [2nd][3] (L3). Only one list is specified there, so no need for the comma to separate. (you are doing 1-var Stat).

If your frequency data is in L2 you must specify it on the line Frequency. However, since the ALPHA keyboard is activated you must deactivate it first by pressing the ALPHA key. After that press [2nd][2] to select L2 or [2nd][3] to specify L3

If there is no frequency list, leave the Line frequency empty.

I hit STAT then CALC then Option 1, which is 1-Var Stats. In this context you have only one set of data. If the data set contains many repeated values you can enter the frequency for each (repeated) data item in List L2, inserting 1 if an item is not repeated.

Thus when you do 1-Var Statistics you have at most two Lists (L1 contains the data values, and L2 their frequencies).

If you press the 1-Var Stats calculation option, the calculator takes L1 as the default data list so you see List:L1 and the ALPHA cursor blinking

On the secoond line you see Frequency: and nothing else on the line.

On the third line you have Calculate.

If Your data is not in L1, you can change that by pressing the [2nd][2] (L2), or [2nd][3] (L3). Only one list is specified there, so no need for the comma to separate. (you are doing 1-var Stat).

If your frequency data is in L2 you must specify it on the line Frequency. However, since the ALPHA keyboard is activated you must deactivate it first by pressing the ALPHA key. After that press [2nd][2] to select L2 or [2nd][3] to specify L3

If there is no frequency list, leave the Line frequency empty.

Aug 25, 2011 | Texas Instruments TI-84 Plus Silver...

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

interesting. But what has that to do with a Acer FlexATX Desktop Case?

Jul 11, 2011 | Acer (91.96320.DOS) FlexATX Desktop Case

You can't manipulate lists like that.

{5,10,15,20,25}[STO>]L1

{5,5,5,5,5}[STO>]L2

These will input your lists properly. I'm not sure what you're trying to do, but if you're just trying to divide every entry in L1 by 5 and store it in L3, you could accomplish that with:

{5,10,15,20,25}[STO>]L1

L1/3[STO>]L3

Also, this page gives a lot of helpful tips on using lists on a TI-83.

http://pages.central.edu/emp/lintont/ti83/html/lists.pdf

Hope this helps!

{5,10,15,20,25}[STO>]L1

{5,5,5,5,5}[STO>]L2

These will input your lists properly. I'm not sure what you're trying to do, but if you're just trying to divide every entry in L1 by 5 and store it in L3, you could accomplish that with:

{5,10,15,20,25}[STO>]L1

L1/3[STO>]L3

Also, this page gives a lot of helpful tips on using lists on a TI-83.

http://pages.central.edu/emp/lintont/ti83/html/lists.pdf

Hope this helps!

Mar 30, 2011 | Texas Instruments TI-83 Plus Calculator

I do not know what you mean by regulate, but if you want to perform a regression analysis using data from L1 and L3, all you have to do is to specify the lists to be used.

For example if you have to perform QuadReg on L1,L3,

For example if you have to perform QuadReg on L1,L3,

- Press [STAT] button,
- then Right Arrow to select CALC(ulate)
- then [5:QuadReg]
- The command QuadReg echoes on main screen as QuadReg .
- At this point press [SHIFT][1] to select (L1), then [COMMA], then [SHIFT][3] to select (L3) , and finally [ENTER].
- The result will be displayed after regression is performed.
- If you want to save the regression equation in Y1 so as to graph it over the scatter plot you enter QuadReg L1, L3, Y1 [ENTER]

Feb 04, 2011 | Texas Instruments TI-83 Plus Calculator

Jul 21, 2014 | Texas Instruments TI-84 Plus Silver...

Jun 14, 2014 | Texas Instruments TI-84 Plus Silver...

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Usually answered in minutes!

PS. This was on a TI 84 Silver Edition, but the students who were getting the right answers were using a variety of 83/84s.

I have similar problem, except now I reset it and the r and r2 are gone!!!

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