1. There is a die that has only four sides. All of them are different colors (orange, yellow, green, and blue), and all of them are equally likely. This die is rolled five times. What is the probability of getting a blue side exactly twice?

2. Let's continue with the same die. It has only four sides. All of them are different colors (orange, yellow, green, and blue), and all of them are equally likely. If it is rolled 192 times, what is the probability of getting between 39 and 51 blue sides?