Page 358 - Algebra 1

4L A B
Drawing Box-and-Whisker Plots
Graphing Calculator Lab (Use with Lesson 54)
When making a box-and-whisker plot, remember to first place the given data in numeric order. Then separate that data into quartiles. Inadvertently omitting a value or listing the data out of order is a common error and will result in inaccurate quartiles. Use a graphing calculator to easily create a box-and-whisker plot based on a set of data, regardless of whether the data is given in numeric order.
The data listed are the ages of 16 students’ oldest siblings. Make a box-and-whisker plot for the data.
10, 11, 15, 10, 9, 14, 12, 8, 9, 15, 7, 10, 10, 14, 18, 19
1. Press and choose 1:Edit to enter the data into L1 (List 1).
2. Clear any old data by pressing the key until L1 is selected and then by pressing
and then .
3. Enter the data one at a time. Press after keying in each value.
4. Press and select 1:Plot1... to open the plot setup menu.
5. Press to turn Plot1 On and then press the key once and the key four times to
select the icon in the middle of the bottom row. The setting for Xlist should be L1 and Freq should be 1.
Online Connection www.SaxonMathResources.com
Lab 4 343