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Quick tips

Legend

  • A blank calculator 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 key , then hold arrow up to increase the contrast or arrow down to decrease the contrast.

To capitalize letters and words

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

To correct a mistake

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

To write in scientific notation

Numbers in scientific notation are expressed on the TI-83, 83+, 84, 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 key , then [LINK] .

Calculator receiving information:

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

Calculator sending information:

  1. Press appropriate number or letter.
  2. Use up and down arrows to access the appropriate item.
  3. Press enter key to select item to transfer.
  4. Press right arrow to navigate to and select <TRANSMIT> .
  5. Press enter key .

Note

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 key , then [QUIT] to exit when done.

Manipulating one-variable statistics

Note

These directions are for entering data with the built-in statistical program.

We are manipulating one-variable statistics.
Sample data
Data Frequency
–2 10
–1 3
0 4
1 5
3 8

To begin:

  1. Turn on the calculator.
    on key

  2. Access statistics mode.
    stat key

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

  4. Enter list [L1] to be cleared.
    2nd key , [L1] , enter key

  5. Display last instruction.
    2nd key , [ENTRY]

  6. Continue clearing remaining lists in the same fashion, if desired.
    arrow left key , 2nd key , [L2] , enter key

  7. Access statistics mode.
    stat key

  8. Select <1:Edit . . .>
    enter key

  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).
      negative sign key , number 9 key , enter key

    • 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").
      number 4 key , enter key

    • Continue in the same manner until all data values are entered.

  11. Access statistics mode.
    stat key

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

  14. Indicate that the data is in [L1] ...
    2nd key , [L1] , comma key

  15. ...and indicate that the frequencies are in [L2] .
    2nd key , [L2] , enter key

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

Drawing histograms

Note

We will assume that the data is already entered.

We will construct two 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 key , [STAT PLOT]

  2. Select <1:plot 1> to access plotting - first graph.
    enter key

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

  4. Use the arrows to go to the histogram picture and select the histogram. enter key
  5. Use the arrows to navigate to <Xlist> .
  6. If "L1" is not selected, select it.
    2nd key , [L1] , enter key

  7. Use the arrows to navigate to <Freq> .
  8. Assign the frequencies to [L2] .
    2nd key , [L2] , enter key

  9. Go back to access other graphs.
    2nd key , [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, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18
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