Probability Tree Calculator

initial setup

Enter the number of choices (2—6) for each event.  Only events with a value for the number of choices given will be included in the tree calculation.  Select at least two independent events.

Keep in mind that the number of terminal branches is given by the product of the number of choices which can grow rapidly.  In the maximum case of 5 events with 6 choices each, there will be 65 = 7,776 terminal branches!

The final tree will give the probabilities for each of the branches.  It is up to you to select those branches that meet a specified crierion and add the probabilities associated with those branches to obtain the desired result.

event: #1 #2 #3 #4 #5