5.3.1

Theoretical Probabilities

Test yourself

Theoretical Probabilities

We can work out the theoretical probabilities involved in an experiment without having to do the experiment itself.

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Formula

  • This is true assuming all outcomes are equally likely.
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Example

  • P(rolling even number on fair die) = 3 ÷ 6 = 12
    • There are 3 even numbers it could be (2,4,6) and there are 6 possible outcomes overall (1,2,3,4,5,6).

Jump to other topics

1Number

1.1Using Numbers

1.2Fractions, Decimals & Percentages

1.3Powers & Roots

1.4Accuracy

2Algebra

2.1Introduction to Algebra

2.2Manipulating Algebra

2.3Proofs & Functions

2.4Straight Line Graphs

2.5Common Graphs

2.6Transformations & Tangents

2.7Properties of Graphs

2.8Solving Equations

2.9Inequalities

2.10Sequences

3Ratio

4Geometry

4.1Introduction to Geometry

4.2Triangles & Quadrilaterals

4.3Transformations

4.4Circle Basics

4.5Circle Theorems

4.6Measurements & Units

4.7Calculating Area

4.8Triangle Formulae

4.93D Shapes

4.10Vectors

5Probability

6Statistics

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