1. A fair coin is flipped. P(heads) = ? (2 marks)
Edexcel GCSEworksheetmedium
GCSE Probability & Data
Probability trees basics, averages, and frequency tables — Edexcel GCSE.
Mathematics · Statistics & Probability · Foundation/Higher · 25 mins · 20 marks · 10 questions
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A fair coin is flipped. P(heads) = ? (2 marks)
P(event) = 0. Means the event is: (2 marks)
Two fair coins. P(two heads) = ? (2 marks)
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2. P(event) = 0. Means the event is: (2 marks)
- Certain
- Impossible
- Likely
- Even chance
3. Two fair coins. P(two heads) = ? (2 marks)
4. Mean of 12, 15, 18, 15 is: (2 marks)
5. Median of 2, 5, 7, 9, 11 is: (2 marks)
6. In a frequency table, frequency of score 3 is 8. This means: (2 marks)
- Score 3 appeared 8 times
- Total scores = 3
- Mean is 8
- Range is 3
7. P(A) = 0.3. P(not A) = ? (2 marks)
8. A spinner has 5 equal sections numbered 1–5. P(even) = ? (2 marks)
9. Estimated mean from grouped data uses: (2 marks)
- Midpoints × frequencies
- Only the mode
- Only the range
- Upper bounds only
10. Range of 4, 9, 2, 11, 7 is: (2 marks)
Show answer key
- 1. 1/2
- 2. Impossible
- 3. 1/4
- 4. 15
- 5. 7
- 6. Score 3 appeared 8 times
- 7. 0.7
- 8. 2/5
- 9. Midpoints × frequencies
- 10. 9
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