Statistics How To

TI 83 box plot: Step by Step Instructions

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TI 83 box plot: Overview

Graphs and charts help us make sense of data, see patterns, and identify trends. Without graphs, it can be difficult to make sense of data. For example, let’s say you have a list of IQ scores for a gifted classroom in a particular elementary school. The IQ scores are: 118, 123, 124, 125, 127, 128, 129, 130, 130, 133, 136, 138, 141, 142, 149, 150, 154. That list doesn’t tell you much about anything. However, with a chart or graph like a box plot (sometimes called a box-and-whisker plot), the data can come to life.
ti 83 box plot
A box plot is a way to present the five number summary in a graphical format. The five number summary is the minimum, the maximum, the median, the first quartile Q1 and the second quartile, Q2.

TI 83 box plot: Steps

Step 1: Press STAT ENTER, to edit L1.

Step 2: Enter the data from the problem into the list:

1 1 8 ENTER
1 2 3 ENTER
1 2 4 ENTER
1 2 5 ENTER
1 2 7 ENTER
1 2 8 ENTER
1 2 9 ENTER
1 3 0 ENTER
1 3 0 ENTER

1 3 3 ENTER
1 3 6 ENTER
1 3 8 ENTER
1 4 1 ENTER
1 4 2 ENTER
1 4 9 ENTER
1 5 0 ENTER
1 5 4 ENTER

Step 3: Press 2nd Y=, to access the Stat Plot menu.

Step 4: Press ENTER ENTER to turn on Plot1.

Step 5: Arrow down to Type, which has 6 icons to the right of it. Highlight the bottom middle icon, which looks like a syringe with two plungers, and press ENTER to select it.


Step 6: Make sure the XList entry reads “L1“. If it doesn’t, arrow down to it, Press Clear 2nd 1.

Step 7: Press Graph. You should see your Box plot!

Tip: If when you press Graph, you see the message “Err: Stat”, or you just don’t see a box plot like you expect to, then press Window, and try different settings. Especially try changing the Xscl (X Scale) item to a larger value.

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One thought on “TI 83 box plot: Step by Step Instructions

  1. Chuck

    Step 7 should be:

    To see the box plot, we need to tell the calculator that we are doing statistical graphing, rather then the more traditional xy-coordinate plane graphing. To do this, press the key, and then press the down arrow to move the cursor over ZoomStat (#9):

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