Mammoth Memory

Probability tree

A tree shaped diagram showing all possible outcomes (looks like a tree with branches)

In order to really achieve an understanding of a question on probability a “Probability Tree” will help enormously.

If faced with a probability question
ALWAYS draw a probability tree 

A tree of possible outcomes.

1b. Probabilitypg11b.jpg

A tree with branches, relates to a real probability tree which looks like:

 

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