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### How to Enter Statistical Data in the TI-84 Plus

What you use to enter statistical data into the TI-84 Plus calculator is the Stat List editor — a relatively large spreadsheet that can accommodate up to 20 columns [more…]

### How to Delete and Edit Data on the TI-84 Plus

When you are working with statistical data on your TI-84 Plus calculator, sooner or later, you’ll have to remove or modify the data that you’ve placed in a data list. The following descriptions show you [more…]

### 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 **Goto**command 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…]