Probability of a single event

Probability = favourable outcomes ÷ all outcomes.

1. A bag holds 5 red, 9 blue, 8 green and 2 yellow marbles. One is picked without looking. What is the probability it is blue? Write a fraction in lowest terms.
2. A bag holds 8 red, 2 blue, 7 green and 9 yellow marbles. One is picked without looking. What is the probability it is green? Write a fraction in lowest terms.
3. A bag holds 3 red, 2 blue, 4 green and 2 yellow marbles. One is picked without looking. What is the probability it is yellow? Write a fraction in lowest terms.
4. A bag holds 3 red, 1 blue, 4 green and 2 yellow marbles. One is picked without looking. What is the probability it is red? Write a fraction in lowest terms.
5. A bag holds 3 red, 7 blue, 5 green and 8 yellow marbles. One is picked without looking. What is the probability it is green? Write a fraction in lowest terms.
6. A bag holds 6 red, 8 blue, 6 green and 6 yellow marbles. One is picked without looking. What is the probability it is red? Write a fraction in lowest terms.
7. A bag holds 3 red, 9 blue, 9 green and 3 yellow marbles. One is picked without looking. What is the probability it is yellow? Write a fraction in lowest terms.
8. A bag holds 2 red, 6 blue, 9 green and 4 yellow marbles. One is picked without looking. What is the probability it is blue? Write a fraction in lowest terms.
9. A bag holds 8 red, 2 blue, 2 green and 3 yellow marbles. One is picked without looking. What is the probability it is red? Write a fraction in lowest terms.
10. A bag holds 8 red, 7 blue, 6 green and 6 yellow marbles. One is picked without looking. What is the probability it is yellow? Write a fraction in lowest terms.
11. A bag holds 4 red, 5 blue, 7 green and 5 yellow marbles. One is picked without looking. What is the probability it is blue? Write a fraction in lowest terms.
12. A bag holds 1 red, 7 blue, 5 green and 1 yellow marbles. One is picked without looking. What is the probability it is red? Write a fraction in lowest terms.
13. A bag holds 1 red, 3 blue, 4 green and 7 yellow marbles. One is picked without looking. What is the probability it is blue? Write a fraction in lowest terms.
14. A bag holds 6 red, 8 blue, 1 green and 4 yellow marbles. One is picked without looking. What is the probability it is blue? Write a fraction in lowest terms.
15. A bag holds 6 red, 2 blue, 4 green and 1 yellow marbles. One is picked without looking. What is the probability it is yellow? Write a fraction in lowest terms.
16. A bag holds 7 red, 8 blue, 4 green and 1 yellow marbles. One is picked without looking. What is the probability it is yellow? Write a fraction in lowest terms.
17. A bag holds 4 red, 3 blue, 2 green and 6 yellow marbles. One is picked without looking. What is the probability it is yellow? Write a fraction in lowest terms.
18. A bag holds 3 red, 8 blue, 4 green and 1 yellow marbles. One is picked without looking. What is the probability it is blue? Write a fraction in lowest terms.
19. A bag holds 5 red, 3 blue, 6 green and 6 yellow marbles. One is picked without looking. What is the probability it is blue? Write a fraction in lowest terms.
20. A bag holds 6 red, 2 blue, 2 green and 6 yellow marbles. One is picked without looking. What is the probability it is blue? Write a fraction in lowest terms.