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Introduction to Probability

In this worksheet, students practise using words to describe probability.

'Introduction to Probability' worksheet

Key stage:  KS 4

GCSE Subjects:   Maths

GCSE Boards:   AQA, Eduqas, Pearson Edexcel, OCR,

Curriculum topic:   Probability

Curriculum subtopic:   Probability Basic Probability and Experiments

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

What is probability?

Probability in maths is the area that deals with the chance of something happening.

 

What words do we use to describe probability?

 

There are 7 terms we use to describe probability;

Impossible: There is no way this can happen (Example: A man growing to be 200 ft tall)

Very Unlikely: This will probably not happen but could (Example: Winning the lottery)

Unlikely: This has more chance of not happening than it does of happening (Example: Rolling a six on a dice)

Evens: This has two things that could happen that are equally likely (Example: Tossing a coin and getting a head)

Likely: This has more chance of happening than it does of not happening (Example: Picking a consonant of the alphabet at random)

Very Likely: This will probably happen but might not (Example: Using your phone today before you go to bed)

Certain: This has to happen (Example: Rolling a normal dice and getting a number less than 7)

 

When do I use words to describe probability?

 

Most probability is described using a number so you should only use words if the question specifically asks you to.

 

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