TI-84 Graphing Calculator

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How to Use Formulas to Enter Data in the TI-84 Plus

You can use formulas to enter statistical data on the TI-84 Plus calculator. The figure illustrates how you would place the sequence 10, 20, . . ., 200 in list [more…]

Copy and Recall Data Lists in the TI-84 Plus

Once you have entered your statistical data in a data list on your TI-84 Plus calculator, you can call the list up again when you want to use or change it. [more…]

How to Sort Data Lists on the TI-84 Plus

You can use your TI-84 Plus calculator to sort data lists and solve a typical standardized test question. Put the following set of numbers in order from least to greatest: [more…]

How to Insert Data Lists on the TI-84 Plus

You can’t rename a data list on your TI-84 Plus calculator, so if you want to have a nifty name for your list, it is best to insert a list before you start entering your data. To insert a data list in [more…]

How to Construct Histograms on the TI-84 Plus

The most common plots used to graph one-variable data are histograms and box plots. In a histogram, the data is grouped into classes of equal size; a bar in the histogram represents one class. The height [more…]

How to Construct a Box Plot on the TI-84 Plus

You can use your TI-84 Plus calculator to construct a box plot for your data. Press [2nd][Y=][2] to access Plot2. Follow Steps 1 through 9 for constructing a histogram. In Step 5, select the Box Plot symbol [more…]

How to Plot Two-Variable Data on the TI-84 Plus

The most common plots used to graph two-variable data sets are the scatter plot and the xy-line plot. You can create both of these on the TI-84 Plus calculator. [more…]

How to Trace Statistical Data Plots on the TI-84

Before tracing a statistical data plot on your TI-84 Plus , press [2nd][ZOOM] and, if necessary, highlight CoordOn in the second line of the Format menu and [more…]

Regression Modeling on the TI-84 Plus

Regression modeling is the process of finding a function that approximates the relationship between the two variables in two data lists. The table shows the types of regression models the TI-84 Plus calculator [more…]

How to Start and Quit Inequality Graphing on the TI-84 Plus

The Inequality app on your TI-84 Plus calculator is a powerful mathematics tool. To start the Inequality app, press [APPS]. See the first screen. Then, press [more…]

The Goto Command on the TI-84 Plus

The Goto command on the TI-84 Plus calculator is used in conjunction with the Lbl (Label) command. The Gotocommand sends the program to the corresponding [more…]

How to Create a Menu on the TI-84 Plus

The Menu command on the TI-84 Plus calculator is a glorified Goto command. It enables the program user to select an item from a menu, and then have the program execute the commands that are specific to [more…]

How to Stop and Pause a Program on the TI-84 Plus

To stop a program on your TI-84 Plus calculator while it is executing, press [ON]. You are then confronted with the ERROR: BREAK error message that gives you the option to QUIT the execution of the program [more…]

Execute an External Program as a Subroutine on the TI-84

It’s quite easy to have a program call and execute another program saved on your TI-84 Plus calculator, and then return to the original program to complete its execution of that program. One command accomplishes [more…]

How to Graph a Residual Plot on the TI-84 Plus

You can use your TI-84 Plus to graph residual plots. A residual plot shows the residuals on the vertical axis and the independent variable on the horizontal axis. [more…]

How to Use Manual-Fit on Regression Lines on the TI-84 Plus

Do you think you could come up with a better line of best fit than your TI-84 Plus calculator did with its regression line? Go ahead and try! Manual Linear Fit enables you to visually find a line of best [more…]

How to Use Statistics Commands on the TI-84 Plus Home Screen

The Home screen on the TI-84 Plus calculator offers a few statistics commands with which you might want to familiarize yourself. To access the Stat List MATH menu, as shown in the first screen , press [more…]

TI Connect Software for the TI-84 Plus

You need two things to enable your TI-84 Plus calculator to communicate with your computer: TI Connect Software and either a USB computer cable or a USB Silver Edition Cable. TI Connect is free, and the [more…]

How to Transfer Files between the TI-84 Plus and PCs

TI Connect software can be used to transfer files between a computer and your TI-84 Plus calculator. The directions for sending files from or to a calculator are a bit different. [more…]

How to Link the TI-84 Plus to Other Calculators

Calculators are linked using the unit-to-unit link cable that came with the TI-84 Plus calculator. If you are no longer in possession of the cable, you can purchase one through the [more…]

How to Transfer Files between the TI-84 Plus and Other Calculators

You can transfer files between any of the TI-84 Plus C, TI-84 Plus, and TI-83 families of calculators. After connecting two calculators, you can transfer files from one calculator [more…]

How to Transfer TI-84 Plus Files to Multiple Calculators

Besides transferring files between two TI-84 calculators, you can use the sending and/or receiving calculator to transfer the same files to a third calculator, usually without having to reselect the files [more…]

How to Connect the TI-84 Plus and PC

You can use the cable that came with your TI-84 Plus calculator to connect your calculator to your computer. The USB computer cable that came with your calculator is a USB-to-mini-USB cable. [more…]

How to Use the TI-84 Plus Backup and Restore Tools

If you have TI-84 Plus calculator files that would be hard to replace, you need to learn how to use the Backup and Restore tools. If your rechargeable battery loses its charge, you are in real danger of [more…]

10 Common Errors when Using the TI-84 Plus

Even the best calculating machine is only as good as its input. This list identifies ten common errors made when using the TI-84 Plus calculator. Wouldn’t it be great to avoid some of the common errors [more…]

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