- Boxplots
- Enter the Data
- Enter the data into list
`L`

._{1} - Find the max and min
- Press
`STAT`

. Several menu titles appear.`EDIT`

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

menu title. The`CALC`

menu appears. - Item #1,
`1-Var Stats`

, is already highlighted. - Press
`ENTER`

. The phrase`1-Var Stats`

appears in the window. - Press
`2nd L`

._{1} - Press
`ENTER`

. A list of statistics appears for the data in list`L`

._{1} - Use the arrow key to scroll down to the min and the max, labeled
`minX`

and`maxX`

. 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 boxplot type, the fifth one. (The icon looks like a little boxplot with the median line through the box.)
- Press
`ENTER`

. - Press the down arrow once. This allows you to select the list containing the data.
- Press
`2nd L`

._{1} - 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. - Press the down arrow once.
- Next to
`Xmax`

, enter a value that is as least as large as the maximum - Draw the Boxplot
- Press
`GRAPH`

(in the upper right corner). The boxplot appears. - Five-Number Summaries
- Method 1 (without a boxplot)
- Enter the data into list
`L`

._{1} - Press
`STAT`

. Several menu titles appear.`EDIT`

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

menu title. The`CALC`

menu appears. - Select item #1,
`1-Var Stats`

. - Press
`ENTER`

. The phrase`1-Var Stats`

appears in the window. - Press
`2nd L`

._{1} - Press
`ENTER`

. A list of statistics appears for the data in list`L`

._{1} - Scroll down the list, using the arrow key. The last five statistics are
the five-number summary (
`minX`

,`Q1`

,`Med`

,`Q3`

,`maxX`

). - Method 2 (with a boxplot)
- Follow the instructions above to create a boxplot of the data.
- Press
`TRACE`

(on the top row of buttons). A blinking X appears at the median line in the boxplot. The value of the median is displayed at the bottom of the window. - Press the right arrow key once and then again to see the third quartile
Q
_{3}and the max. - Press the left arrow key to see the first quartile Q
_{1}and the min.