27. A bag contains 5 red, 6 green and 4 blue marbles. Four are drawn out at random What is the probabilities of the following events expressing each as a fraction in the lowest term. (a) all are green...

Extracted text: 27. A bag contains 5 red, 6 green and 4 blue marbles. Four are drawn out at random What is the probabilities of the following events expressing each as a fraction in the lowest term. (a) all are green (b) all are the same color (c) at least 3 are red (d) two blue and one of each of the other colors (e) NOT all are green