Tree Diagrams (Edexcel A-Level Mathematics): Flashcards

Branches represent possible outcomes of an event.

Nodes are points where branches split for different stages.

Leaves represent the final outcomes of events.

Probability is $\frac{1}{2}$ for Heads on the first toss.

Multiply probabilities along the branches.

Depends on the total red and overall balls in the draw.

Used for multiple events where outcomes affect others.

It shows likelihood of events given prior outcomes.

$P(A|B) = P(A \cap B) / P(B)$ when $P(B) \neq 0$.

Probability of HT is $\frac{1}{4}$ or $0.25$ from tossing twice.