Additive and Multiplicative Rules for Probability: Red Dress? Blue Dress? Both!

This Additive and Multiplicative Rules for Probability: Red Dress? Blue Dress? Both! interactive also includes:

The sum of the parts is greater than the whole. An interactive uses a Venn-like model to show the percentage of females from a survey that have a blue dress, a red dress, or both. The pupils determine the numbers in each category given the percent of overlap in multiple situations. Scholars determine why the total of all the categories is more than the total number of females.

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CCSS: Designed
Instructional Ideas

  • Be sure pupils understand the situation begins with two disjoint events
  • Have the class determine the probability that a female chosen at random has a red dress
Classroom Considerations

  • Requires signing up for free CK-12 account
Pros

  • Contains hints for the challenges
  • Allows individuals to view the correct answer if they answer incorrectly
Cons

  • None