Mean Driver Score
The quality team is computing the platform-wide average driver rating. Round the average rating to 2 decimal places and output it in a column avg_rating.
Expected output sample
This is what a correct answer looks like — its row count is its own, it doesn't have to match the schema tables.
| avg_rating |
|---|
| 4.62 |
Yandex
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Paused · SomaFM · Fluid