At 14:49 I mean to say "an odd number plus an odd number, will also give you an even number". OOPS.
A video building on the ideas from probability tree diagrams. This video looks at how conditional probabilities are calculated.
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0:00 Intro
0:23 Example with Tree Diagram
3:51 Example without a Tree Diagram
7:46 Another Example (a game with cards)
12:32 Another Example (numbered counters in a bag)
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