Set Theory and Probability (Leaving Cert Mathematics): Quizzes

A collection of distinct objects

All possible elements in a context

When all elements of $A$ are in $B$

All elements from sets $A$ and $B$

Elements common to both $A$ and $B$

Elements in $U$ not in $A$

Sets with no elements in common

From 0 (impossible) to 1 (certain)

The set of all possible outcomes

$P(A \cup B) = P(A) + P(B) - P(A \cap B)$

$P(A) + P(B)$

$P(A \cap B) = P(A) \times P(B)$