# Probability tree – Overall probabilities

We multiply probabilities along branches.

We add probabilities up columns.

Just like a tree.

**Branches** on trees **multiply**. The **column** of a tree adds **upwards**.

# Probability tree – Overall probabilities

We multiply probabilities along branches.

We add probabilities up columns.

Just like a tree.

**Branches** on trees **multiply**. The **column** of a tree adds **upwards**.