National 3 Applications of Mathematics
Probability Worksheet
Answer each question clearly. Show one step of working where you can, then write a final answer.
- 1
A probability scale marker is at 0.25. Which word best describes the chance?
- 2
A bag has 6 red counters and 2 blue counters. What is the probability of picking a red counter?
- 3
Use the spinner table. Which colour is more likely?
- 4
An event has probability 35. How many times would you expect it in 55 trials?
- 5
A bag has 2 red counters and 4 blue counters. What is the probability of picking blue?
- 6
A fair six-sided dice is rolled. What is the probability of rolling more than 2?
- 7
A spinner has 8 equal sections and all 8 sections are shaded. How likely is it to land on a shaded section?
- 8
A bag has 5 red counters and 3 blue counters. What is the probability of picking a red counter?
- 9
A spinner has 10 equal sections and all 10 sections are shaded. How likely is it to land on a shaded section?
- 10
A fair six-sided dice is rolled. What is the probability of rolling more than 3?