CK-12-Basic Probability and Statistics Concepts - A Full Course

7.12 Applications of Box-and-Whisker Plots

7.12 Applications of Box-and-Whisker Plots

Here you’ll learn how to use Texas Instruments calculators to create box-and-whisker plots and to determine the
five-number summary of a data set.

Suppose you survey 1500 students in three counties and collect the number of brothers and sisters each one has. How
would you represent this data? What tools would you use to organize this data? How would you find the median
number of siblings?

Watch This

First watch this video to learn about creating box-and-whisker plots with a calculator.

MEDIA

Click image to the left for more content.

CK-12 Foundation: Chapter7ApplicationsofBoxandWhiskerPlotsA

Then watch this video to see some examples.

MEDIA

Click image to the left for more content.

CK-12 Foundation: Chapter7ApplicationsofBoxandWhiskerPlotsB

Guidance

The TI-83 or TI-84 can be used to create a box-and whisker plot. In the following examples, the TI-83 is used.
In later Concepts, key strokes using the TI-84 will be presented to you. The five-number summary values can be
determined by using the TRACE feature and the left and right arrows of the calculator or by pressing

STAT

and using 1-Var Stats on the CALC menu. TheTRACE featuregives the individual values of the five-number
summary one at a time.

Example A

The following numbers represent the number of siblings in each family for 15 randomly selected students: