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Launch Data & Statistics from Lists & Spreadsheet Application

As with any TI-Nspire application, you have the option of launching the Data & Statistics application by inserting a new page and selecting Data & Statistics from the seven available choices.

However, because the purpose of the Data & Statistics application is to graph numerical (and sometimes categorical) data, it makes sense to start with the Lists & Spreadsheet application. Then, use the Quick Graph feature in the Lists & Spreadsheet application to launch the Data & Statistics application.

How to enter data in Lists & Spreadsheet

The rules for using the Lists & Spreadsheet application in conjunction with Data & Statistics are quite straightforward. You must have one or two named lists in the Lists & Spreadsheet application.

For example, look at the lists displayed. In the first screen is a list called dice_sum that uses the command =randint(1,6,50) + randint(1,6,50) to produce a list of 50 numbers. This list represents a simulation of rolling two dice 50 times and recording their sums. This is a single-variable data set because only one list of data is to be analyzed.

The second screen shows the U.S. Immigrant Population versus Year data, which represents a two-variable data set with the independent variable represented by Year and the dependent variable represented by U.S. Immigrant Population.

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Notice that each list is named. You must have named lists to use the Data & Statistics application.

How to use the Quick Graph feature

After your named lists are complete, press [MENU]→Data→Quick Graph (or right-click) to open the Quick Graph feature. The first screen shows the result of using Quick Graph with the single-variable data set. TI-Nspire automatically opens a split screen with a Data & Statistics page side by side with the existing Lists & Spreadsheet page.

By default, single-variable data sets are visually represented by a dot plot. TI-Nspire can represent single-variable data sets with a dot plot, box plot, or histogram.

The second screen shows the result of using Quick Graph with the two-variable data set. Again, TI-Nspire automatically opens a split screen with a Data & Statistics page and the existing Lists & Spreadsheet page.

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With the Lists & Spreadsheet page active, try pressing [CTRL][R] to recalculate the values dependent on the formula =randint(1,6,50) + randint(1,6,50). This action generates a new set of values, and the dot plot updates accordingly.

If you have two or more columns of data contained in a Lists & Spreadsheet application, you must select the column or columns of data to be used with Quick Graph. Here’s how you accomplish this task:

  • Select a column. Use the Touchpad to move the cursor to the letter at the top of the column. [CLICK] directly on the letter. For example, click the A to select column A. This is just one of many “clickable areas” on the TI-Nspire.

  • Select multiple rows or columns. After selecting a column, press and hold the [SHIFT] key. While holding this key, press the Touchpad keys to select additional columns.

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