## Recognise that probabilities range from 0 to 1 (ACMSP117)List outcomes of chance experiments involving equally likely outcomes and represent probabilities of those outcomes using fractions (ACMSP116)

LO: To describe probabilities using fractions, decimals and percentages
Know:

• The probability is the chance of an event occurring.
• How to answer questions to collect data
• The difference between categorical and numerical data

Understand:

• That probability ranges from 0 to 1

Do:

• I can describe probabilities between 0 and 1.

# Describing Probabilities

### A probability of 1 means that the event is certain to occur. ### A probability of more than > 1/2 would be likely to occur. ## Equally-likely Outcomes

### For example, the chance of landing a heads or tails is equal when flipping a coin, so that is an equally-likely event. The chance of picking an even number is the same as the chance of picking an odd number, so those events are also equally-likely. ### This is an equally-likely event because the spinner has an equal chance of landing in the red, green, orange and blue sections. # Teaching Ideas 