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Boxplots

Making Boxplots on your TI-83/84.

 

Using your handheld calculator, let's produce a boxplot of the AAA ratings for the Volvo V40 Wagon.

Volvo V40 Wagon 8 8 7 9 7 8 8 6 8 7 8 8 8 7 8 8 10 9 9 9

(full chart available here)

Turn your TI-83 or TI-84 series calculator on and follow these steps:
What you do
What you will see

Step 1
Access the List Editor
Press STAT
Step 2
Input your data

Select EDIT by pressing ENTER or 1.

Then enter our 20 data values into L1.

(If you don't have "L1" as a title, then highlight "SetUpEditor" from the STAT menu and press enter twice.)

Step 3
Select a viewing window

Press WINDOW

Input the values shown to the right.
(Be sure to use "-" not "–". That is, use the negative symbol and not the subtract symbol for negative 4.)

Step 4
Choose the type of graph

Press 2ND then STAT PLOT.
Press ENTER or 1 to edit the first plot.

Select "On".

Choose the boxplot option under "Type:".
You will need to use the right arrow to get there.

Step 5
Graph it!

Press GRAPH

Press TRACE and use the arrows to see what's there.

 

 

 

 

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