# TI-83 Instructions

## Scatter Diagram

- Enter the data
- Enter the
*x* values into list `L`_{1}

.
- Enter the
*y* values into list `L`_{2}

.

- Find the min and the max of
*x* and *y*
- Press
`STAT`

.
- Use the arrow key to select the
`CALC`

menu title.
- Select item #2,
`2-Var Stats`

.
- Press
`ENTER`

. The phrase `2-Var Stats`

appears in the window.
- Press
`2nd L`_{1}

.
- Press the comma key.
- Press
`2nd L`_{2}

.
- Press
`ENTER`

. A list of statistics appears.
- Use the arrow key to scroll down to find the minimum and maximum of
*x* (`minX`

and `maxX`

) and the minimum and maximum of *y* (`minY`

and `maxY`

). Record them.

- Set up the Stat Plot
- Press
`2nd STAT PLOT`

(in the upper left corner). The `STAT PLOTS`

menu appears.
- Use the arrow key to select one of the plots, say
`Plot1`

.
- Press
`ENTER`

.
- Use the left/right arrow keys to select
`On`

.
- Press
`ENTER`

. This turns `Plot1`

on. (The other plots should be turned off.)
- Press the down arrow once. This allows you to select the type of plot.
- Use the left/right arrows to select the scatter diagram type, the first one. (The icon looks like a little scatter diagram.)
- Press
`ENTER`

.
- Press the down arrow once. This allows you to select the list containing the
*x* values.
- Press
`2nd L`_{1}

.
- Press the down arrow again. This allows you to select the list containing the
*y* values.
- Press
`2nd L`_{2}

.

- Set up the Window
- Press
`WINDOW`

(on the top row of buttons).
- Next to
`Xmin`

, enter a value that is as least as small as the minimum *x*.
- Press the down arrow once.
- Next to
`Xmax`

, enter a value that is as least as large as the maximum *x*.
- Press the down arrow.
- Next to
`Ymin`

, enter a value that is as least as small as the minimum *y*.
- Press the down arrow once.
- Next to
`Ymax`

, enter a value that is as least as large as the maximum *y*.

- Draw the Scatter Diagram
- Press
`GRAPH`

(in the upper right corner). The scatter diagram appears.