Statistical Plotting - Texas Instruments TI-80 Manual Book

Statistical Plotting

You can plot statistical data that you have entered in lists. The types of plots
available include scatter plots, x-y lines, box and whisker plots, and histograms.
You can define up to three plots at a time.
Steps
Scatter Plot
¼
XYLine
½
9-18 Statistics
To plot statistical data:
1. Enter the statistical data as lists (page 9-9 and Chapter 8).
2. Select the statistical calculations (pages 9-14 through 9-16
), and calculate the statistical variables (page 9-17) or fit
the data to a model, if desired.
3. Select or deselect
(Chapter 4).
4. Define the statistical plot (page 9-20).
5. Turn the plot(s) on, if necessary (page 9-21).
6. Define the viewing window (page 9-21 and Chapter 4).
7. Display and explore the graph by pressing ,, *,
or +.
¼
(scatter plot) plots the data points from
(Y list) as coordinate pairs, showing each point as a box (
+
cross ( ), or dot (¦).
can be the same list.
½
(XYLine) is a scatter plot in which the data points are
plotted and connected in the order in which they appear in
and YL . You may want to sort the lists with
SORTD( before plotting.
Y= equations, as appropriate
XL and YL must be the same length. They
XL (X list) and YL
 ),
XL
SORTA( or