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ACARA AC9M10P01, Conditional probability language

Year 10 · Probability

Use language such as 'if then', 'given', 'of' and 'knowing that' to describe and interpret situations involving conditional probability.

Below are free printable maths worksheets that support AC9M10P01. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teaching guide

What students learn

Use language such as 'if then', 'given', 'of' and 'knowing that' to describe and interpret situations involving conditional probability.

How to teach it

Order events from impossible to certain in everyday language, then quantify simple chances as fractions of the equally-likely outcomes.

Worked example
A bag has 5 counters. 5 are purple. Picking a purple counter is (impossible, unlikely, even chance, likely, certain):
Answer: certain
Why: all 5 are purple, so it always happens

Generated and checked in code, so it is correct.

Watch out for

Assuming a rare-but-possible event is impossible, and thinking past results change the next independent outcome.

Probability worksheets

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More Year 10 Probability codes: AC9M10P02
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Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.