# The scale of likelihoods

I can show the likelihood of an outcome on a scale.

# The scale of likelihoods

I can show the likelihood of an outcome on a scale.

## Lesson details

### Key learning points

- A scale can be drawn showing the 5 different likelihoods.
- The likelihood scale can be evaluated to understand why only 5 states are shown.
- Different outcomes for an event can be placed on the likelihood scale.

### Common misconception

'Equal chance' means the same as 'even chance'.

When a trial has more than two possible outcomes which are all equally likely to happen, each outcome has less than an even chance of happening. E.g. each number on a dice has the same likelihood of being rolled, but each is less than an even chance.

### Keywords

Impossible - An outcome is impossible if there is no possibility that it can happen.

Certain - An outcome is certain if it is guaranteed to happen.

Even chance - An outcome has even chance if its likelihood of happening is the same as its likelihood of not happening.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Video

Loading...

## Starter quiz

### 6 Questions

## Exit quiz

### 6 Questions

impossible

unlikely

even chance

likely

certain

likely

unlikely

even chance