Rossman/Chance
Applet Collection
- Press
the Edit Data button to paste in your own data (enter the variable name
in first line, but don't
use numbers or they become part of the data set!).
- Data
values can be moved and calculated values will update below the graph
(use the Edit button to permanently change the values). To delete data
value, select dot and press "-" key. To add a value, press
the
"+" key and then click on graph.
- The
"percentages within" are computed for the guesses. To match
the actual values, move the guesses to match the actual values.
- Random
data are generated from normal, mixture of two normals, uniform, and
chi-square distributions.
- New Feature: Stacked data
can be inputted, with up to 4 groups. Each row should be: datavalue
groupname
(or vice versa; with or without titles; don't use nonalpha characters in the titles
but use characters not numbers for group labels).
With this option, data values can be highlighted in the
bottom
graph, but not edited.
- Click
here for an
exploration activity using this applet.
- Click
here
for a second exploration activity using this applet.
- Click
here
for a third exploration activity using this applet.
- Click here for a javascript version of this applet