SIG Quantatitive Researcher Interview Question: Coin Sequence Pattern Probability
Are you preparing for a SIG Quantitative Researcher interview and want to master advanced probability questions? One of the classic problems you may encounter is about the probability of one coin sequence appearing before another in repeated coin tosses. This article dives deep into the “coin sequence pattern probability” question, providing step-by-step solutions, key concepts, and tips to ace similar interview problems.
Question: A fair coin is flipped repeatedly. What is the probability that the sequence HHT appears before HTH?
This is a classic Markov process and pattern matching problem, often asked in quantitative interviews to assess your probability modeling and reasoning skills. Let’s break down the problem and solve it systematically.
