Mammogram Math

This gives a graphical solution to the "Mammogram Math" problem, which is presented here or here; given a positive test result, how likely is it that you have that disease?

Use the big green slider to animate. Using arrows on the keyboard seems to give a smoother progression.

The variables A and B can be changed by the sliders, or you can type in values, as long as they are in range (0 less than A \leq 50 \leq B less than 100).

Click on the top-right corner to reset.

Oops! You're not seeing a graph! Check your message bar at the top of the screen; make sure ActiveX controls are enabled.

Else, sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

The graph is 800x600-ish, as are my previous few; I hope this means it works well with a digital projector. Enjoy!

Tim Cieplowski, May 9, 2010, Created with GeoGebra



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