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Notes and tips for using TI-83, TI-83+, and TI-84 calculators for statistics applications.

Quick tips

Legend

  • generic button represents a button press
  • [ ] represents yellow command or green letter behind a key
  • <> represents items on the screen

To adjust the contrast

Press 2nd button , then hold up button to increase the contrast or down button to decrease the contrast.

To capitalize letters and words

Press alpha button to get one capital letter, or press 2nd button , then alpha button to set all button presses to capital letters. You can return to the top-level button values by pressing alpha button again.

To correct a mistake

If you hit a wrong button, just hit clear button and start again.

To write in scientific notation

Numbers in scientific notation are expressed on the TI-83, 83+, and 84 using E notation, such that...
  • 4.321 E 4 = 4.321 10 4
  • 4.321 E -4 = 4.321 10 4

To transfer programs or equations from one calculator to another:

Both calculators: Insert your respective end of the link cable cable and press 2nd button , then [LINK] .

    Calculator receiving information:

  1. Use the arrows to navigate to and select <RECEIVE>
  2. Press enter button

    Calculator sending information:

  1. Press appropriate number or letter.
  2. Use up and down arrows to access the appropriate item.
  3. Press enter button to select item to transfer.
  4. Press right arrow to navigate to and select <TRANSMIT> .
  5. Press enter button
ERROR 35 LINK generally means that the cables have not been inserted far enough.
Both calculators: Insert your respective end of the link cable cable Both calculators: press 2nd button , then [QUIT] To exit when done.

Manipulating one-variable statistics

These directions are for entering data with the built-in statistical program.
We are manipulating 1-variable statistics.
Sample data
Data Frequency
-2 10
-1 3
0 4
1 5
3 8

    To begin:

  1. Turn on the calculator.


    on button

  2. Access statistics mode.


    stat button

  3. Select <4:ClrList> to clear data from lists, if desired.


    four button , enter button

  4. Enter list [L1] to be cleared.


    2nd button , [L1] , enter button

  5. Display last instruction.


    2ndbutton , [ENTRY]

  6. Continue clearing remaining lists in the same fashion, if desired.


    left button , 2nd button , [L2] , enter button

  7. Access statistics mode.


    stat button

  8. Select <1:Edit . . .>


    enter button

  9. Enter data. Data values go into [L1] . (You may need to arrow over to [L1] )
    • Type in a data value and enter it. (For negative numbers, use the negate (-) key at the bottom of the keypad)


      negate button , nine button , enter button

    • Continue in the same manner until all data values are entered.
  10. In [L2] , enter the frequencies for each data value in [L1] .
    • Type in a frequency and enter it. (If a data value appears only once, the frequency is "1")


      four button , enter button

    • Continue in the same manner until all data values are entered.
  11. Access statistics mode.


    stat button

  12. Navigate to <CALC>
  13. Access <1:1-var Stats>


    enter button

  14. Indicate that the data is in [L1] ...


    2nd button , [L1] , comma button

  15. ...and indicate that the frequencies are in [L2] .


    2nd button , [L2] , enter button

  16. The statistics should be displayed. You may arrow down to get remaining statistics. Repeat as necessary.

Drawing histograms

We will assume that the data is already entered

We will construct 2 histograms with the built-in STATPLOT application. The first way will use the default ZOOM. The second way will involve customizing a new graph.

  1. Access graphing mode.


    2nd button , [STAT PLOT]

  2. Select <1:plot 1> To access plotting - first graph.


    enter button

  3. Use the arrows navigate go to <ON> to turn on Plot 1.


    <ON> , enter button

  4. Use the arrows to go to the histogram picture and select the histogram.
    enter button
  5. Use the arrows to navigate to <Xlist>
  6. If "L1" is not selected, select it.


    2nd button , [L1] , enter button

  7. Use the arrows to navigate to <Freq> .
  8. Assign the frequencies to [L2] .


    2nd button , [L2] , enter button

  9. Go back to access other graphs.


    2nd button , [STAT PLOT]

  10. Use the arrows to turn off the remaining plots.
  11. Be sure to deselect or clear all equations before graphing.

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Source:  OpenStax, Collaborative statistics for mt230. OpenStax CNX. Aug 18, 2011 Download for free at http://legacy.cnx.org/content/col11345/1.2
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