Tree Diagrams - Probability

Tree Diagrams - Probability

1. Used to see all possible outcomes of 2+ events and calculate their probability

   • Independent Probability
     • The outcome of one event has no effect on the outcome of the other event
       • E.g. When we toss two coins, the face that the first coin lands on has no effect on the face the second coin lands on
     • Independent Probability Example
   • Conditional Probability
     • The outcome of one event depends on the outcome of a previous event
       • E.g. A red sweet is picked out of a bag of differently pigmented sweets and eaten. There are now less red sweets, which affects the probability of the second sweet which is picked being red
     • Example

2. Exam Question - Hannah's Sweets

   • Note that this is actually an algebra question under the guise of Probability

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