Statistics Programs for the TI-84 Plus and TI-83 Plus Graphing Calculators
Some important applications/programs that come with the TI-84 are NOT on the TI-83. The first of these that I happened upon was the inverse t-distribution. This is the "invT" application, found on the TI-84 by pressing 2ND, then VARS, and scrolling down to invT. The inputs required are the area, A, to the left of the t-value desired, and the number of degrees of freedom, df, which is equal to (n - 1), where n is the sample size (if df is not given directly). Its output is the value of the t-distributed random variable with df degrees of freedom, corresponding to the given area A.
No such application is available on the older TI-83 calculator. However, such programs have been written for it. Detailed instructions for programming the algorithm can be found at the following website: http://www.ehow.com/how_7483505_download-invt-function-ti-calculator.html. I followed those directions and placed the resulting program into this file, which can be viewed or downloaded (by saving to your computer):
No such application is available on the older TI-83 calculator. However, such programs have been written for it. Detailed instructions for programming the algorithm can be found at the following website: http://www.ehow.com/how_7483505_download-invt-function-ti-calculator.html. I followed those directions and placed the resulting program into this file, which can be viewed or downloaded (by saving to your computer):
invtw.8xp | |
File Size: | 0 kb |
File Type: | 8xp |
Another important statistic characterizing a data set is its mode, or modes. Neither the TI-83 nor TI-84 include such an application. One such program can be found at http://www.calcblog.com/resources by scrolling down to Downloads and looking under Calcblog Software. Their "TI-83 and TI-84 Mode Program" determines all modes of a data set. It is written in TI calculator assembly language, so will download as a strange-looking text file. Save it to your computer, and it can later be transferred directly from your computer to calculator. You can also view or download it here:
mode.8xp.txt | |
File Size: | 0 kb |
File Type: | txt |
Detailed instructions for transferring a new program to the TI-83, from the computer to which it was downloaded, can be found at the Calcblog website, above, or at http://faculty.wiu.edu/JR-Olsen/wiu/stu/calculators/ti-connect-cable.htm.
Another essential website for all things having to do with TI graphing calculators is http://www.ticalc.org. Look under the Help link, or go to Archives to peruse the huge collection of calculator programs available for download.
I have been remiss in adding a link to one of the most important of all TI graphing calculator resources, especially for anyone having an interest in learning to write programs for these wonderful devices, repairing them, or going deeply into their inner workings. This is the Cemetech website http://www.cemetech.net founded and administered by Christopher "KermMartian" Mitchell. I recommend highly his fine book Programming the TI-83 Plus/TI-84 Plus, for learning to program your calculator.
Go to this page for my rather lengthy discussion at an introductory level of the use of graphing calculators in Elementary Statistics.
Another essential website for all things having to do with TI graphing calculators is http://www.ticalc.org. Look under the Help link, or go to Archives to peruse the huge collection of calculator programs available for download.
I have been remiss in adding a link to one of the most important of all TI graphing calculator resources, especially for anyone having an interest in learning to write programs for these wonderful devices, repairing them, or going deeply into their inner workings. This is the Cemetech website http://www.cemetech.net founded and administered by Christopher "KermMartian" Mitchell. I recommend highly his fine book Programming the TI-83 Plus/TI-84 Plus, for learning to program your calculator.
Go to this page for my rather lengthy discussion at an introductory level of the use of graphing calculators in Elementary Statistics.