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Statistics

Enter data into a list

Type a set of numbers into a list so you can summarise, plot or fit them.

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Most statistics work starts with a list of numbers, such as test scores or heights. Graphing and scientific models keep these in a small spreadsheet-like editor with columns called lists.

You type one value, press the store key, and the cursor drops to the next row. The example uses five test scores: 72, 85, 90, 64 and 88.

Classic Graphing 84

Start on the main screen: Press 2nd then mode (QUIT) to get back to the home screen. Pressing clear on a menu also backs out of it.

  1. Open the list editor from the STAT menu with Edit.

    stat1

  2. Type each score and press enter. The cursor moves down one row each time.

    72enter85enter90enter64enter88enter

You should seeThe first column, L1, holds the five scores and the cursor waits at row 6.

To start over, move the cursor onto the list name at the top, press clear, then enter.

Classic Graphing 84 key reference

Classic Scientific 30

Start on the main screen: Press 2nd then mode (QUIT) to leave any menu or screen and return to the calculation screen.

  1. Press the data key to open the editor.

    data

  2. Type each score and press enter.

    72enter85enter90enter64enter88enter

You should seeL1(6)=

Classic Scientific 30 key reference

Natural Scientific 991

Start on the main screen: Press MENU, then 1 (Calculate) to return to the main calculation screen. AC clears the line you are on.

  1. Open the Statistics mode and choose 1-Variable, which gives a single column called x.

    MENU61

  2. Type each score and press = to store it in the table.

    72=85=90=64=88=

You should seex6=

Press AC when you are done to leave the table. Your numbers stay saved.

Natural Scientific 991 key reference

Natural Color Graphing

Start on the main screen: Press MENU then 1 to open Run-Matrix, the main calculation screen. Press EXIT to back out of a bar or screen, and SHIFT then EXIT (QUIT) to return to the app start.

  1. Open the Stat mode from the main menu. You land in the list editor.

    MENU2

  2. Type each score and press EXE.

    72EXE85EXE90EXE64EXE88EXE

You should seeList 1[6]=

Natural Color Graphing key reference

Classic CAS

Start on the main screen: Press home to open the Home menu (Calculator, Graphs, Settings, and more). Choose Calculator, or press esc to go back to the calculation page.

  1. Type the scores inside curly braces, separated by commas. Curly braces are on the shifted bracket keys.

    shift{(72,85,90,64,88shift})

  2. Press ctrl and the store key to add an arrow, then type a name for the list, such as grades.

    ctrl→:=grades

  3. Press enter to save it.

    enter

You should seeThe list is saved under the name grades and can be used in any later calculation.

Classic CAS key reference

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