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.
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-log-table-1.4df6ee6.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-log-table-2.d516bb3.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-anti-log-table-1.b0b0513.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-anti-log-table-2.f89189d.jpg)
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.