In a coffee shop, the number of coffees produced every hour is given below.
| Hours | \(1 - 3\) | \(4 - 6\) | \(7 - 9\) | \(10 - 12\) | \(13 - 15\) | \(16 - 18\) |
| Number of coffee | 15 | 4 | 2 | 13 | 18 | 9 |
Find the median hours of coffees produced.
Answer:
The median number of coffees produced is