📊 Ages 12–15
Statistics Quiz
Charts, data and probability!
Q 1/10 ⭐ 0
📊
Round Complete!
0
out of 10 correct
💡 Statistics Reference
🎲 Probability Scale
0 1/4 1/2 3/4 1
Impossible Unlikely Even chance Likely Certain
P(event) = number of favourable outcomes ÷ total outcomes
Example: A bag has 3 red and 7 blue balls. P(red) = 3/10
📋 Reading Frequency Tables
Mode — the value that appears most often (highest frequency)
Total frequency — add up all the frequency values
Mean — multiply each value by its frequency, add up, then divide by total frequency
| Value | Frequency |
|---|---|
| 1 | 3 |
| 2 | 7 ← mode |
| 3 | 5 |
| Total | 15 |