• evaluate probabilities in simple cases by means of enumeration
of equiprobable elementary events (e.g. for the total score when
two fair dice are thrown), or by calculation using permutations or
combinations;
• use addition and multiplication of probabilities, as appropriate, in
simple cases;
• understand the meaning of exclusive and independent events,
and calculate and use conditional probabilities in simple cases,
e.g. situations that can be represented by means of a tree diagram.