MathDB
Problems
Contests
National and Regional Contests
China Contests
ASDAN Math Tournament
2015 ASDAN Math Tournament
22
2015 Guts #22
2015 Guts #22
Source:
July 28, 2022
2015
Guts Test
Problem Statement
You flip a fair coin which results in heads (
H
\text{H}
H
) or tails (
T
\text{T}
T
) with equal probability. What is the probability that you see the consecutive sequence
THH
\text{THH}
THH
before the sequence
HHH
\text{HHH}
HHH
?
Back to Problems
View on AoPS