3.3.1 Exam Question Type 1

As far as a probability tree itself is concerned, there is not many different ways question can be asked. The only way it can be asked is either by giving you a tree and asking you to complete it and use it to answer questions. Or another way to ask is to give you some descriptions and let you draw a tree to answer questions.

All the possible variations come from the probability basics that we discussed in ‘3.1 From Description’.

The following are relevant past exam questions:

(Note: The links will direct you to relevant question in the file on PC only NOT mobile)

2010Q20, 2014Q19, 2015Q30b, 2013Q30b, 2012Q27e, 2019Q25, 2014Q28c, 2016Q28c, 2018Q30d

Check out the videos below relevant to these questions.

HSC Maths Standard 2019 Question 25 - StudyNinja

by StudyNinja (click to view channel)

Solves Question 25 from Maths Standard 2019 HSC exam (Probability).

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All the possible variations come from the probability basics that we discussed in ‘3.1 From Description’. Scenarios can get more complex which can add complexity in drawing the tree.