Probability of events – Hard
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Question 1 of 25
1. Question
What is the probability of picking a red 2 in a deck of cards (not including jokers)?

Question 2 of 25
2. Question
An ice cream shop is testing out new ice cream flavours, and a number of customers try 1 flavour each. Based on the table, what is the probability that a customer tried strawberry flavour?

Question 3 of 25
3. Question
If a fair 6sided dice is rolled, what is the probability it will land on a prime number?

Question 4 of 25
4. Question
A drawer is filled with 128 pairs of socks, they are either green or yellow. Based on the table, what is the probability that a yellow pair will be picked (as a fraction)?

Question 5 of 25
5. Question
A bag contains some shapes. 20x are pentagons, 17x are squares, 11x are rectangles and 2x are circles. What is the probability percentage of picking a square?

Question 6 of 25
6. Question
A bag contains 60 counters, 37 are black, 5 are white, 9 are brown and 9 are pink what is the probability of picking a pink?

Question 7 of 25
7. Question
A bag contains some balls, 23 are blue, 5 are red, 4 are brown and 8 are purple, what is the probability of picking a ball that isn’t blue?

Question 8 of 25
8. Question
A bag contains some pens, 14 are green, 19 are white, 45 are yellow and 22 are pink, what is the probability percentage of picking a pen that isn’t white or yellow?

Question 9 of 25
9. Question
What is the probability of landing on a cube number on a spinner with numbers 126?

Question 10 of 25
10. Question
There are 40 students in a class and 10 like dogs and 8 like cats. What is the probability of picking a student who doesnâ€™t like either dogs or cats?

Question 11 of 25
11. Question
A bag contains 60 pens, 3x are green, 4x are purple, 3x are white. what is the probability of picking a purple?

Question 12 of 25
12. Question
A bag contains 30 balls, 1x are red, 2x are orange, 3x are black. what is the probability of picking a black?

Question 13 of 25
13. Question
A bag contains 100 shapes, 24 are triangles, 4 are squares and 7 are circles. If the rest are pentagons, what is the probability of picking a pentagon (as a percentage)?

Question 14 of 25
14. Question
A bag contains 30 counters, 17 are blue, 5 are orange, 3 are brown and 5 are purple, what is the probability of picking a blue counter?

Question 15 of 25
15. Question
A bag contains some shapes, 17 are triangles, 6 are hexagons and 3 are quadrilaterals. What is the probability of picking a quadrilateral?

Question 16 of 25
16. Question
A bag contains 35 counters, 11 are black, 12 are pink, 9 are red and 3 are orange, what is the probability of picking a red?

Question 17 of 25
17. Question
A class contains 20 girls and 10 boys. 1/4 of the girls have blue eyes and 1/2 of the boys have blue eyes. What is the probability of picking a student with blue eyes?

Question 18 of 25
18. Question
A bag contains 29 counters, 9 are red, 3 are orange, 2 are black. If the rest are purple, what is the probability of picking a purple?

Question 19 of 25
19. Question
A bag contains 1 rhombus, 3 triangles, 5 squares, 3 circles and 1 rectangle. What is the probability of picking a 4sided shape?

Question 20 of 25
20. Question
A bag contains 50 counters, 20 are green, 3 are blue, 1 is black. If the rest are red what is the probability of picking a red (as a percentage)?

Question 21 of 25
21. Question
If a fair 6sided dice is rolled, what is the probability it will not land on a prime number?

Question 22 of 25
22. Question
There is a number spinner with numbers 117 on it. What is the probability of picking a prime number (as a fraction)?

Question 23 of 25
23. Question
A boat filled with passengers arrives in the UK. Based on the tree diagram, what is the probability that those passengers will not have any dogs with them?

Question 24 of 25
24. Question
There is a number spinner with numbers 120 on it. What is the probability of picking a square number or a cube number (as a percentage)?

Question 25 of 25
25. Question
A shop is testing out flavours, and a number of customers try 1 flavour each. Based on the tree diagram, what is the probability that a customer tried toffee?