Texas Instruments TI-82 User Manual - Page 163
Setting Up a Statistical Analysis - screen dim
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Setting Up a Statistical Analysis The data for statistical analyses is stored in lists. The TI.82 has six list variables in memory that you can use in stat calculations. Several types of statistical analyses are available. Steps 1. Enter the stat data in list(s) (pages 12.9 through 12.12). 2. Set up statistical calculations (page 12.13). 3. Calculate the statistical variables or fit the data to a model (page 12.14 through 12.17). 4. Plot the data (page 12.18 through 12.21). Displaying the STAT List Editor To display the STAT list editor, press ... and then press 1 or Í to select Edit... from the STAT EDIT menu. The top line displays the names of the lists (even if the list is empty). The center portion of the STAT list editor displays up to seven elements of three lists, showing the values of the elements in abbreviated form if necessary. The full value of the current element (indicated by the rectangular cursor) is shown on the bottom line. Leaving the STAT List Editor To leave the STAT list editor: ¦ Select another screen by pressing the appropriate key. ¦ Press y ãQUITä to return to the Home screen. Deleting a List You can delete the contents of a list in several ways: ¦ Use the ClrList instruction (page 12.12). ¦ Through the MEM menu (Chapter 16). ¦ In the STAT editor, press } to move onto the list name, and press ' Í. ¦ In the STAT editor, delete each element. ¦ On a command line, enter 0!dim listname. Statistics 12-9