Skip to content

Cambridge IGCSE Mathematics

8.2Relative and expected frequencies

Relative and expected frequencies in Cambridge IGCSE Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic20 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 8.2.1Use relative frequency as an estimate of probability, and understand the terms fair, biased and random.
  2. 8.2.2Calculate expected frequencies.

Lessons

  • Relative and expected frequency

    17 min

    Full access

Join to read every lesson, or see what Full access includes.

Sample question

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

Relative and expected frequencies: sample question

1 mark

A bottle top is thrown 50 times. It lands with its open side facing up 18 times. Use these results to estimate the probability that the bottle top lands open side up.

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

Turn Relative and expected frequencies into a strength.

Practise with instant marking, see your mastery grow and get a study plan built around your exam date.