Using Your TI-83/84 Calculator: Normal Probability Distributions Elementary Statistics Dr. Laura Schultz Always start by drawing a sketch of the normal distribution that you are working with. Shade in the area (probability) that you are given or trying to find, and label the mean, standard deviation, lower. The TI-84 Plus graphing calculator is ideal for high school math and science. Its MathPrint technology engages students by enabling them to enter fractions and equations in proper notation so they see it on the display exactly as it’s printed in texts and on the board.

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This tutorial shares several examples of how to use the invT function to find T critical values on a TI-84 calculator. Example 1: T Critical Value for a Left-Tailed Test Question: Find the T critical value for a left-tailed test with a significance level of 0.05 and degrees of freedom = 11. TI 84 Plus/TI 84 Plus CE: A step up from the TI 83, the TI 84 calculators have dozens of applications preloaded and allow users to explore interactive geometry. The TI 84 Plus CE features a colored screen. TI Nspire CX II/TI Nspire CX II CAS: These calculators feature interactive visuals and graphics that are easy to read. The TI Nspire CX II.

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Downloading apps and programs onto your TI-84 graphing calculator can extend its abilities, help you gain an edge over your competition in high-stakes tests, or even let you play games on your calculator.

This How-To guide applies to every TI-84, including the TI-84 Plus CE, TI-84 Plus, TI-84 Plus C Silver Edition, and TI-84 Plus Silver Edition calculators.

What you need:

Ti-84 Calculator

• Any TI-84 Plus Graphing Calculator
• Calculator Charging Cable
• TI Connect CE Software (Download Here)

Make sure you download and install TI Connect CE! You will not be able to transfer any programs to your calculator without it.

Best Places for Calculator Apps/Programs

• TICalc.org: TICalc.org is the best website for downloading math/science programs. Its selection is unrivaled, as anyone is able to upload their own program
• TI84CalcWiz.com: TI84CalcWiz is the best website for downloading games. It features the highest quality games available and ensures that the installation process is quick and painless.
• TI.com: The Texas Instruments website is the best for Apps designed by Texas Instruments. The selection on this website is small, but the apps it does have are among the best in terms of quality.

Using TICalc.org can be a bit confusing for beginners. Assuming you are looking for math programs, go to the file archives, and click on your calculator’s name. From here, click on basic, then math. You can download any program you find interesting by clicking on its name.

Sending Apps/Programs to Your Calculator

Now that you have found some programs, let’s put them on your calculator using TI Connect CE.

Step One: Open the file you downloaded, and drag the files inside of it onto your desktop (this will extract the files, as most come in the form a .zip file)

Step Two: Open TI Connect CE, and click the “Calculator Explorer” tab on the sidebar. Plug your calculator into your computer using your charging cable. Turn on your calculator.

Step Three: You should now see a list of all of the files on your calculator. Drag all of the calculator files into the list to send them to your calculator (in this example GIF, there is only one file, but send all of them if there is more than one calculator file).

A window should now pop up. Click “SEND” to send the program to your calculator.

If no window showed up when dragging in the files: you can manually browse to the file you downloaded by clicking “Actions” (in the top bar), and then “Add files from computer…”.

If everything worked out, the program/app should now be on your calculator!

Using Apps/Programs on Your Calculator

Ti-84 Calculator online, free App Download

Programs and apps are stored under two different places on TI-84 calculators. If you are unsure whether the file you downloaded is an app or program, just check both locations.

• Apps: Press the [apps] button on your calculator, and select the app you would like to use from the menu.
• Programs: Press the [prgm] button on your calculator, select the program you want to use, and then press enter again to run it.

And that’s really all there is to it! Most programs are fairly self-explanatory, and math programs on TICalc.org have readme files that explain how to use them (and provide the developer’s contact information, if you ever need more help).

Online Texas Instruments Ti 84

But what if I want to remove a program or app? Don’t worry, this is an easy task to accomplish. Check out this article for more information: How to Delete a Program/App on a TI-84 Calculator