3rd year of secondary education.Probability INDEX Introduction Aims Elementary probability. Equally likely outcomes. Outcomes which are not equally likely. Laplace's rule. Certainty and impossibility. The law of large numbers. Compound probability. Probability and dice. Mutually exclusive and non-mutually exclusive events. Probability and union. Probability and intersection.
Probability and chance.
INTRODUCTION

This unit introduces the concepts of probability and chance. The basic concept of theoretical probability is also introduced (events, frequency etc.).

Practical examples are used to illustrate different concepts and the basic laws and rules governing probability are outlined (e.g. Laplace's rule and the law of large numbers).

The unit ends with an introduction to the probability of compound events and focuses on examples of the union and intersection of events.

AIMS
• Prove the Law of large numbers through experimentation.
• Apply Laplace's rule to work out simple probabilities.
• To relate and distinguish the concepts of the probability and frequency of an event.
• To work out the probabilities of compound events.

 Ángela Núñez Castaín
 Spanish Ministry of Education. Year 2001