Learn / Probability in depth Go to Overview 1. Counting without double counting 2. The discrete distributions that keep coming back, Pro 3. Continuous and geometric probability, Pro 4. Order statistics and symmetry, Pro 5. Random walks and the gambler's ruin, Pro 6. Markov chains and first step analysis, Pro Flashcards, 0 of 17 reviewed Basic quiz Advanced quiz Terms Probability in depth
0 of 6 lessons
0 of 17 cards Counting, the standard distributions, geometric probability, order statistics, random walks, and Markov chains. The second and third question in a probability round come from here.
B Basic3 lessons 1 Counting without double counting Most wrong probability answers are wrong counts. Four tools cover almost every interview: ordered or not, repeated letters, stars and bars, and inclusion and exclusion. 10 min 2 The discrete distributions that keep coming back Binomial, geometric, Poisson, and hypergeometric cover most counting questions. Know each one's mean and variance cold so you can quote a fair value and a width in one breath. 11 min 3 Continuous and geometric probability With uniform random numbers, probability is area. Draw the square, shade the region, and most questions are done in a picture. 10 min Q Basic quiz 10 questions, 80% passes