MA34-03 Maths Coming soon
Relative frequency as an estimate of probability
MA34-03
This lesson is coming soon.
In this lesson
Calculate relative frequency as (frequency of the event) divided by (total number of trials), and use it as an estimate of probability.
What it covers
- The definition: relative frequency = frequency of an event / total number of trials
- Calculating relative frequency from a table of experimental results
- Using a calculated relative frequency as an estimate of probability
- The meaning of fair, biased and random in this context
- Recognising the correct divisor is always the total number of trials, never a different number from the question
Key words
For: Cambridge IGCSE 0580, OCR GCSE J560, Edexcel IGCSE 4MA1
On the specification
| Board | Spec | Statement |
|---|---|---|
| Cambridge IGCSE 0580 | C8.2 | Understand relative frequency as an estimate of probability. |
| Cambridge IGCSE 0580 | E8.2 | Understand relative frequency as an estimate of probability. |
| OCR GCSE J560 | 11.01c | Use relative frequency as an estimate of probability. |
| Edexcel IGCSE 4MA1 | F6.3G | Estimate probabilities from previously collected data |
For teachers
This GCSE Maths lesson teaches relative frequency as an estimate of probability. By the end, students should be able to calculate relative frequency as (frequency of the event) divided by (total number of trials), and use it as an estimate of probability. It works through two worked examples and the mistakes examiners report.