Question about Texas Instruments TI-89 Calculator

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Use the mean() function in the MATH/Statistics menu to find the mean of a list. For example, mean({1,2,3,4,5}) will produce 3. Likewise, if the list {1,2,3,4,5} is stored in the variable z, mean(z) will also produce 3. You can also specify a second argument to mean() to specify a frequency list for groupd statistics.

For full details, refer to the "Statistics and Data Plots" chapter in the guidebook. If you've misplaced your guidebook, you can download a copy from http://education.ti.com/educationportal/downloadcenter/SoftwareList.do?website=US&tabId=2&paneId=17

Posted on Aug 03, 2010

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Posted on Jan 02, 2017

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Here is one technique I used on the TI84Plus.

Create two lists list1(50) and list2(50) of equal dimension (same length)

You will have to find how to do it on ClassPad.

Fill list2 with zeros

Fill list1 with your data.

Sort the list in ascending order (if it is not sorted)

Do standard deviation calculation on list1 (or calculate the average)

The mean of the data is in a special variable (xbar)

From the command line using the list syntax calculate abs(list1-xbar) and store results in list2, overwiting the zeros.

Perform standard deviation on the new list2. You will get the mean deviation from the mean in the variable xbar.

**A simple request from you**. Can you please not use MINUS as a verb? By doing so you are propagating incorrect usage. There is a short and correct way to express the operation:** to add.**

Create two lists list1(50) and list2(50) of equal dimension (same length)

You will have to find how to do it on ClassPad.

Fill list2 with zeros

Fill list1 with your data.

Sort the list in ascending order (if it is not sorted)

Do standard deviation calculation on list1 (or calculate the average)

The mean of the data is in a special variable (xbar)

From the command line using the list syntax calculate abs(list1-xbar) and store results in list2, overwiting the zeros.

Perform standard deviation on the new list2. You will get the mean deviation from the mean in the variable xbar.

May 05, 2012 | Casio ClassPad 300 Calculator

Hi.

P1383 is one of Jaguar's own codes. You can find the code even in other engines (e.g. Ford). P1383 means : Variable Cam Timing Overretarded (Bank #1).

Symptoms:Rough idle, engine stalling.

Here possible causes:

Cam timing improperly set.

Continuous oil flow to the VCT piston chamber.

VCT solenoid valve stuck open.

Camshaft advance mechanism binding (VCT unit).

Solution: the part in the Variable Cam Timing listed above must be tested and repaired.

Regards.

Ginko

P1383 is one of Jaguar's own codes. You can find the code even in other engines (e.g. Ford). P1383 means : Variable Cam Timing Overretarded (Bank #1).

Symptoms:Rough idle, engine stalling.

Here possible causes:

Solution: the part in the Variable Cam Timing listed above must be tested and repaired.

Regards.

Ginko

Aug 09, 2011 | 2002 Jaguar S-Type

You're apparently referencing one more lists or matrices whose dimensions do not match. You may be referencing a variable that is a matrix when it should be a scalar.

If you can't find it, append a comment to this post specifying exactly what you're trying to plot.

If you can't find it, append a comment to this post specifying exactly what you're trying to plot.

Jul 01, 2010 | Texas Instruments TI-83 Plus Calculator

Just add the values and divide the sum by the number of values.

May 25, 2010 | Texas Instruments TI-Nspire Graphic...

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.

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.

Dec 13, 2009 | Texas Instruments TI-84 Plus Silver...

Hello,

Press [2nd][MEM][2: Mem Mgmt/Del][1:All] and scroll down to see if a system variable or other entity that is needed for graphing may have been archived. A variable that is archived has an asterisk next to it on the left.

To unarchive it press ENTER when the arrow reaches it.

You may be able to draw your graphs. It you are unable, I suggest you reset the Ram: Press [2nd][MEM][7:Reset][1:All Ram][2:Reset] [ENTER]. Press [CLEAR] to erase the message and restart the statistics.

Hope it helps.

Press [2nd][MEM][2: Mem Mgmt/Del][1:All] and scroll down to see if a system variable or other entity that is needed for graphing may have been archived. A variable that is archived has an asterisk next to it on the left.

To unarchive it press ENTER when the arrow reaches it.

You may be able to draw your graphs. It you are unable, I suggest you reset the Ram: Press [2nd][MEM][7:Reset][1:All Ram][2:Reset] [ENTER]. Press [CLEAR] to erase the message and restart the statistics.

Hope it helps.

Nov 01, 2009 | Texas Instruments TI-83 Plus Calculator

Perhaps you have some data stored in the x variable.

With the calculator on, press [2nd] then the minus button. This brings up a list of all the saved data in the calculator. Look through the far left column of the list for x.

If you find x in the list, highlight x, then press F1, and then select delete.

Now it should work like normal.

With the calculator on, press [2nd] then the minus button. This brings up a list of all the saved data in the calculator. Look through the far left column of the list for x.

If you find x in the list, highlight x, then press F1, and then select delete.

Now it should work like normal.

Oct 22, 2009 | Texas Instruments TI-89 Calculator

Quoting from page B-7 of the Guidebook:

-----

You are attempting a stat calculation with lists that are not appropriate; for example, you are requesting a statistical analysis with fewer than two statistical data points. The frequency (y value) for a 1-VAR analysis must be an integer >= 0.

------

If you simply want 1-variable statistics for two sets of data, you'll have to calculate them separately.

-----

You are attempting a stat calculation with lists that are not appropriate; for example, you are requesting a statistical analysis with fewer than two statistical data points. The frequency (y value) for a 1-VAR analysis must be an integer >= 0.

------

If you simply want 1-variable statistics for two sets of data, you'll have to calculate them separately.

Oct 20, 2009 | Texas Instruments TI-85 Calculator

Hi,

I think you need a FOR - DO Scriptcode.

example:

FOR /f %%f IN (actual.txt) DO echo %%f >> list.txt

"FOR" with Parameter "/F" means:

read in "actual.txt" every line as text, then save it in variable "%%f" and "DO" an "ECHO" in variable "%%f" which will be written in ">>" "list.txt"

Hope that helps.

I think you need a FOR - DO Scriptcode.

example:

FOR /f %%f IN (actual.txt) DO echo %%f >> list.txt

"FOR" with Parameter "/F" means:

read in "actual.txt" every line as text, then save it in variable "%%f" and "DO" an "ECHO" in variable "%%f" which will be written in ">>" "list.txt"

Hope that helps.

May 23, 2009 | Microsoft Windows Vista Home Premium with...

go to auto zone and you can buy a haynes book for your car with the codes in the book, or buy a code scanner book.

Jan 03, 2009 | 1993 Buick Riviera

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