Answer to Question #113625 in Statistics and Probability for Sonam

Question

N red cards and 2N black cards (all distinct) are shuffled together to form a single deck, and then split into half. What is the probability that each half will contain N red and N black cards

Answer 1

General number of cards is N+2N=3N. The act of dividing in half a deck of 3N cards will not result in two halves having 2N cards each, so the probability is 0