1. One was a simple conditional Bayes problem when we have 2 coins the first one is a biased coin where with the probability of 2/3 we get head. The second on is a fair one. Then the problem was that if we toss the coin 5 times and get 3 heads. What is the probability that we chose the biased one. 2. Second question was that assume we have a deck of 52 cards, 26 reds and 26 blacks. We define an interval as a block of cards with the same color. What is the expectation of the number of intervals? (The answer is 27)
