GRADE 5
Name:
In a bag you are given 5 blue marbles, 2 yellow marbles and 3 red marbles.
1. How many marbles altogether?
2. What is the probability that you will pull out a blue marble?
3. What is the probability that you will pull out a red marble?
4. What is the probability that you will pull out a yellow marble?
5. What is the probability that you will pull out a red or a yellow marble?
6. What is the probability that you will pull out a blue or a yellow marble?
7. If I took out 2 blue marbles what is the probability that you will pull out a red
marble now? (remember there are fewer marbles altogether now!)
8. If I took out 2 blue marbles what is the probability that you will pull out a yellow
marble now?
9. If I took out 2 blue marbles what is the probability that you will pull out a blue
marble now?
10.What is the probability of pulling out a green marble?
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Grade 5 Term 4: Maths: Data Handling: Probability 4
Probability 4
GRADE 5
In a bag you are given 5 blue marbles, 2 yellow marbles and 3 red marbles.
1. How many marbles altogether? 10 marbles
5 or 1
2. What is the probability that you will pull out a blue marble? 5 out of 10 or 10
2
3
3. What is the probability that you will pull out a red marble? 3 out of 10 or 10
2 or 1
4. What is the probability that you will pull out a yellow marble? 2 out of 10 or 10
5
5. What is the probability that you will pull out a red or a yellow marble?
5 or 1
2 + 3 = 5 out of 10 or 10
2
6. What is the probability that you will pull out a blue or a yellow marble?
7
5 + 2 = 7 out of 10 or 10
7. If I took out 2 blue marbles what is the probability that you will pull out a red
marble now? (remember there are fewer marbles altogether now!)
3 out of 8 or 38
8. If I took out 2 blue marbles what is the probability that you will pull out a yellow
marble now? 2 out of 8 or 28 or 14
9. If I took out 2 blue marbles what is the probability that you will pull out a blue
marble now? 3 out of 8 or 38
10.What is the probability of pulling out a green marble?
Not probable at all or 0 probability.
© e-classroom 2015
www.e-classroom.co.za
Grade 5 Term 4: Maths: Data Handling: Probability 4
Answers