7.17 The student, given a problem situation, will collect, analyze, display, and interpret data, using a variety of graphical methods, including
a) stem-and-leaf plots;
b) box-and-whisker plots; and
c) scatterplots.

Stem and Leaf Plotter Directions

To use the plotter on the left, type your data in the text window. As you enter them, separate the different values by

  • spaces:    12 23 33 38 45
  • commas:  12,23,33,38,45

Press the "Compute" button when you have finished entering your data. Your browser will open a new window and display the Stem-and-Leaf plot.
When you are done looking at the new window press the "Exit" button.

On-line Activities

  • Shodor This activity generates a stem and leaf plot from data that the student enters.
  • Shodor This activity is called "Boxplot". This activity allows the student to explore maximum, minimum, median, upper quartile, lower quartile and outliers.
  • Activity 3

Other Web Sites

  • Matti This activity creates a scatterplot from the relationship of a student's height and hand.
  • ExploreLearning Teachers have to assign the Stem and Leaf to their classes.
  • Larson´s Software Students need to be enrolled by their teachers. Click on the Advanced Statistics and Data Analysis, then click on Box-and-Whisker Plots.

Lesson 5-5: Data Plots

A stem-and-leaf plot is a data display that shows groups of data arranged by place value and looks something like a bar chart. Each number in the data is broken down into a stem and a leaf. The stem of the number includes all, but the last digit. The leaf of the number will always be one digit. Look at the stem and leaf pictures below:

StemLeaf
Stem and Leaf Plotter

Use the Refresh button to enter a new set.

Data Set 1
Here are 20 values.
15 10 12 13 20 25 15 30 32 35 40 45 45 55 55 55 58 60 65 68

Data Set 2
Here are 20 weights.
105, 110, 112, 113, 120, 125, 125, 130, 132, 135, 140, 145, 145, 155, 155, 155, 158, 160, 165, 168