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ZIMSEC O-Level Mathematics

14Probability

Probability in ZIMSEC O-Level Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Topic79 practice questions4 lessons

Learning objectives

What the syllabus expects you to be able to do.

  1. 14.0.1Use the language of probability, including random, certain, impossible, sample space, equally likely, mutually exclusive and independent events.
  2. 14.0.2Distinguish between experimental and theoretical probability and calculate the probability of a single event.
  3. 14.0.3Calculate probabilities of combined events using outcome tables, tree diagrams and the rules for mutually exclusive and independent events.

Lessons

  • Basic probability

    17 min

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  • Combined events

    17 min

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  • Relative and expected frequency

    17 min

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  • Tree diagrams

    16 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Probability: sample question

1 mark

A fair six-sided dice, numbered 1 to 6, is rolled once. Find the probability that it shows a prime number.

Only if the answer has a unit, e.g. cm or km/h.

Turn Probability into a strength.

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