fair die is rolled three times. A 5 is considered "success," while all other outcomes are "failures." Find the probability of 2 successes. The probability of 2 successes is. (Type an integer or a simplified fraction.)

A city council consists of eight Democrats and seven Republicans. If a committee of four people is selected, find the probability of selecting two Democrats and two Republicans. (Type a fraction. Simplify your answer.) G

A group of people were asked if statistics teachers know the true meaning of life. 255 responded "yes", and 497 responded "no". Find the probability that if a person is chosen at random, he believes statistics teachers know the true meaning of life. Probability (Please enter a reduced fraction.) %D

Find the probability: You land on a red space when playing roulette. There are 18 red spaces, 18 black spaces, and 2 green spaces.