CAIE IGCSE Mathematics Extended Relative and Expected Frequency

Practise scaling a probability or observed sample proportion to predict an expected count across repeated trials or a larger population.

Syllabus
2028–2030
Topic
E8.2
Level
Extended

Exam points

  • multiply an event probability by the stated number of repeated trials to predict its frequency
  • scale a sample proportion to estimate the corresponding count in a larger population

Covered syllabus points

E8.2.1 Understand relative frequency as an estimate of probability.E8.2.2 Calculate expected frequencies

E8.2 Relative and expected frequencies question 1

[Maximum number: 2]

At a festival, 380 people out of 500 people questioned say that they are camping. There are 55300 people at the festival.

Calculate an estimate of the total number of people camping at the festival.

All question bank results loaded