Lesson

What words can you think of that describe the the chance of something happening? Can you think of examples of events that fit each word you can think of?

What is the chance my paper plane will fly forever?

A

Impossible

B

In between certain and impossible

C

Certain

Worked Solution

Idea summary

These are the 2 terms we have seen to describe chance:

Impossible: definitely will NOT happen.

Certain: definitely will happen.

This video shows us how to describe the likelihood of events.

What is the chance of flipping heads with a coin?

A

Unlikely

B

Likely

C

Even chance

Worked Solution

Idea summary

More terms to describe chance:

Unlikely: more likely NOT to happen than to happen.

Even chance: one thing is not more likely to happen than the other

Likely: more likely to happen than not to happen.

How likely something is can be visualised on a line similar to a number line. This video shows us how.

Which section describes the chance of 'the next person you meet has the same birthday as you'?

A

B

Worked Solution

Idea summary

In order of how much chance something has of happening, we can start from the left, and move right. It's just like a number line.