Kash ChandranFeb 53 minCoin Flipping: Using Markov Chains to Compute Expected Times and Probabilities of a SubstringHow to use Markov Chains to Compute Expected Times and Probabilities of Coin Flips.
Kash ChandranJan 282 minBranching Processes and ExtinctionClassic branching process question with variants that appear frequently in quant finance interviews.
Kash ChandranJan 211 minThree Stocks with Pairwise Correlations ρ: What Values can ρ Take?Classic question testing Linear Algebra in the context of Finance.
Kash ChandranOct 3, 20231 minNewborns and Bayes' RuleClassic problem of computing the gender of a newborn using Bayes' Rule and Conditional Probability.
Kash ChandranSep 1, 20232 minThe Birthday Problem in ProbabilityThis is a classic problem and has many variants - so you should definitely understand the approach.