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Product No. HiMAP Pull-Out Supplementary Print Price: FREE with membership
 

Imperfect Testing

Marsha Davis, Pat Taylor


Mathematics Topic:
Algebra, Probability, Statistics
Application Areas:
Various
Prerequisites:
Basic probability

| ©2001 Consortium 79 | 8 pages |



The activities in this Pull-Out deal with conditional probability.

Activity 1 introduces conditional probability and provides students with some practice organizing information into two-way tables and tree diagrams.

Activity 2 focuses on the imperfect nature of certain tests, such as testing for drug usage or particular diseases. Your students will be surprised to learn that under certain circumstances the probability of having a particular trait, given that you have tested positive for that trait, can be small.