What did the middle round score?
The middle General Knowledge round scored 80%, while the mean across all 65 rounds was 73.8%. This comes from BrainiLab’s recorded completions from 19 October to 9 November 2026 (UTC).
The mean adds the round percentages and divides by the number of rounds. The median lines the rounds up by score and finds the middle. If there are two middle rounds, it takes their mean.
| Game | Rounds | Mean | Median |
|---|---|---|---|
| General Knowledge | 65 | 73.8% | 80% |
| Odd One Out | 11 | 73.6% | 80% |
How can the two numbers differ?
Imagine three rounds that score 20%, 80% and 80%. The middle score is 80%, but the mean is 60%. A low score can pull the mean down without changing the middle.
That little example explains how the calculation works. It does not tell us how the real BrainiLab scores were spread. In our sample, every General Knowledge round counted 20 answers and every Odd One Out round counted ten, so within each game the mean gives each round equal weight.
For another example, try comparing mean and median with a pile of biscuits. The same two calculations answer different questions.
Keep the round count beside the score
The two groups have different numbers of rounds and different game formats. Compare the mean and median within a group to see what each summarises. The BrainiLab’s aggregate data gives the counts and the formula.
Read the rest of the BrainiLab quiz data series.