Probability of events – Easy

Last updated: 27/08/2021

FREE Sample Course GCSE Maths Probability of events – Easy

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Question 1 of 25

1. Question
If a bag contains blue and green pens only and the probability of picking a blue pen is 0.7, what is the probability of picking a green pen?
- 0.3
- 0.7
- 1/7
- 1/3
Question 2 of 25

2. Question
If a bag contains purple and orange counters only and the probability of picking a purple counter is 0.4, what is the probability of picking an orange counter?
- 0.6
- 0.4
- 1/6
- 1/4
Question 3 of 25

3. Question
If a bag contains yellow, green and brown balls, what is the probability of taking out any colour ball?
- 1
- 1/2
- 1/4
- 75%
Question 4 of 25

4. Question
What is the probability of landing on a square number after throwing a fair 6-sided dice?
- 2/6
- 1/6
- 4/6
- 1/2
Question 5 of 25

5. Question
What is the probability of landing on an odd number after throwing a fair 6-sided dice?
- 3/6
- 4/6
- 1/3
- 2/3
Question 6 of 25

6. Question
What is the probability of throwing a 6-sided fair dice and landing on a 5 compared to it landing on a 1?
- They are both equally likely
- It is twice as likely to land on a 5
- It will be more likely to land on the 1
- It is unlikely to land on either one as they are both odd numbers
Question 7 of 25

7. Question
If a bag contains black and white counters only and the probability of picking a black counter is 0.1, what is the probability of picking a white counter?
- 0.9
- 1/9
- 0.1
- 1/2
Question 8 of 25

8. Question
What is the probability of picking a black card in a deck of cards (excluding jokers)?
- 26/52
- 75%
- 20/52
- 30%
Question 9 of 25

9. Question
What is the probability of landing on a prime number on a fair 6-sided dice?
- 3/6
- 2/6
- 2/3
- 4/6
Question 10 of 25

10. Question
If the chance of it raining tomorrow is 0.5, what is the probability of it not raining?
- 0.5
- 2
- 5
- 0.1
Question 11 of 25

11. Question
What must all probabilities in an event add up to?
- 1
- 100
- 50
- 10
Question 12 of 25

12. Question
If a bag has 6 counters: 3 red and 3 blue, what is the probability of picking out a red counter?
- 3/6
- 1
- 4/6
- 1/6
Question 13 of 25

13. Question
A bag contains 10 balls, 7 are blue and 3 are green. What is the probability of picking a blue?
- 7/10
- 1/3
- 7/3
- 3/10
Question 14 of 25

14. Question
If a book has 50 pages and every 5 pages a star is drawn. What is the probability of opening the book to a page with a star?
- 10/50
- 1/10
- 75%
- 30%
Question 15 of 25

15. Question
A bag contains 7 balls, 2 are orange and 5 are blue. What is the probability of picking an orange?
- 2/7
- 5/7
- 1/7
- 4/7
Question 16 of 25

16. Question
If the probability of a single catastrophic event happening is 0.3, what is the probability that it will not happen?
- 0.7
- 0.9
- 0.3
- 3/10
Question 17 of 25

17. Question
A bag contains 8 balls, 3 are blue and 5 are green. What is the probability of picking a blue?
- 3/8
- 5/8
- 3/5
- 1
Question 18 of 25

18. Question
What is the probability of flipping a coin and getting heads?
- 50%
- 25%
- 1/3
- 3/4
Question 19 of 25

19. Question
Which one of the following statements are true about a 6-sided fair dice?
- The probability of picking any number is equally likely.
- It is bias
- The probability of landing on an even number is more likely than an odd number.
- It will only land on 5 sides out of the 6-sided dice.
Question 20 of 25

20. Question
A bag contains purple and yellow counters only. Based on the tree diagram, what is the probability of picking a purple?
- 0.3
- 0.8
- 0.7
- 0.4
Question 21 of 25

21. Question
A person at random is selected in the streets and asked for their favourite animal. What is the probability of it being a dog?
- 0.8
- 0.1
- 0.2
- 0.5
Question 22 of 25

22. Question
A forecast is shown for the weather tomorrow. Based on the tree diagram, what is the probability of it not raining tomorrow?
- 0.1
- 0.7
- 0.3
- 0.9
Question 23 of 25

23. Question
A coin is flipped and will either land on heads or tails. Based on the table, what is the probability of it landing on tails?
- 0.2
- 0.5
- 0.6
- 0.3
Question 24 of 25

24. Question
A bag has some green and some black balls. Based on the table, what is the probability of taking out a green ball?
- 0.8
- 0.4
- 0.6
- 0.3
Question 25 of 25

25. Question
A bag is filled with odd numbers and even numbers. Based on the table, what is the probability of taking out an odd number?
- 0.6
- 0.5
- 0.9
- 0.2