| |
| |
1. |
A bag contains 10 red marbles, 5 gray marbles, 12 black marbles, and 8 white marbles. Two marbles are randomly drawn from the bag without replacement. What is the probability of drawing a white marble followed by a marble that is not black? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
2. |
A bag contains 2 green apples, 3 yellow apples and 5 red apples. An apple is taken from the bag and is not replaced. Then another apple is taken. What is P(red, then yellow)? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
3. |
A bag of marbles has 3 green marbles, 3 red marbles and 6 yellow marbles. One marble is taken from the bag. It is not replaced. Then another marble is taken from the bag. What is the probability that the first marble is yellow and the second marble is green? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
4. |
A bag of marbles has 4 blue marbles, 1 red marble, 5 green marbles and 6 orange marbles. One marble is taken from the bag. It is not replaced. Then another marble is taken from the bag. What is the probability that the first marble is blue and the second marble is orange? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
5. |
A bag of marbles has 4 blue marbles, 1 red marble, 5 green marbles and 6 orange marbles. One marble is taken from the bag. It is not replaced. Then another marble is taken from the bag. What is the probability that both marbles are orange? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
|
|