Question

A bag contains 15 marbles. 7 are blue, 4 are red, 2 marbles are green and 2 marbles are yellow. A marble is taken from the bag at random. What is the probability that it is:

Blue?
Yellow?
Red?
Green?
Either blue or red?
Either red or yellow?
Blue, green or yellow?
Not yellow?

Answer 1

1:7/12
2:2/12
3:4/12
4:2/12
5:11/12
6:6/12
7:11/12
8:13/15
you can reduce if possible