Three Coins: Bayesian Inference - Quant Trader Interview Question
Difficulty: Medium
Category: Probability & Statistics
Practice quant interview questions from top firms including Jane Street, Citadel, Two Sigma, DE Shaw, and other leading quantitative finance companies.
Topics: probability, bayes-theorem, conditional-probability, mental-math
Problem Description
You are presented with a box containing three coins. One coin is two-headed, and the other two are fair coins. You randomly select one coin from the box and flip it. The result is Heads. What is the probability that you selected the two-headed coin?
Practice this medium trader interview question on MyntBit - the all-in-one quant learning platform with 200+ quant interview questions for Jane Street, Citadel, Two Sigma, and other top quantitative finance firms.