1. This small group activity is designed to help students understand how to combine probabilities in non-interacting systems.
  2. Students calculate the probability, for two uncorrelated systems A and B, of system A being in state i and system B being in state j, given the probabilities for each independent system.
  3. The wrap-up discussion reinforces the concept that probabilities are multiplied, and introduces the mathematical notation used to describe probabilities.

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