6. The Chevalier Problem (textbook, page 425): (a) First problem: Find the probability of rolling at least one 6 in four rolls of a standard six-sided die. (b) Second problem: Find the probability of rolling at least one double-6 in 24 rolls of two six-sided dice. (c) Comment on how the difference between the probabilities gotten above can be the difference between rags and riches in gambling. How can casinos exploit this idea? 2