My World Tools

Probability Tree

Set the success probability and depth to see every branch's combined probability.

SSS
SSF
SFS
SFF
FSS
FSF
FFS
FFF
S → S → S12.50%
S → S → F12.50%
S → F → S12.50%
S → F → F12.50%
F → S → S12.50%
F → S → F12.50%
F → F → S12.50%
F → F → F12.50%

Probability by number of successes (any order)

Exactly 0 success(es)12.50%
Exactly 1 success(es)37.50%
Exactly 2 success(es)37.50%
Exactly 3 success(es)12.50%