Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| No. in series | No. in season | Title | Directed by | Written by | Original air date | U.S. viewers (millions) |
| --- | --- | --- | --- | --- | --- | --- |
| 49.0 | 1.0 | " My Bad " | Steve Shill | Chip Johannessen | September26,2010 | 1.77 |
| 50.0 | 2.0 | "Hello, Bandit" | John Dahl | Scott Buck | October3,2010 | 1.70 |
| 51.0 | 3.0 | "Practically Perfect" | Ernest Dickerson | Manny Coto | October10,2010 | 1.86 |
| 52.0 | 4.0 | "Beauty and the Beast" | Milan Cheylov | Jim Leonard | October17,2010 | 1.79 |
| 53.0 | 5.0 | "First Blood" | Romeo Tirone | Tim Schlattmann | October24,2010 | 1.94 |
| 54.0 | 6.0 | "Everything is Illumenated" | Steve Shill | Wendy West | October31,2010 | 1.63 |
| 55.0 | 7.0 | "Circle Us" | John Dahl | Scott Buck | November7,2010 | 1.90 |
| 56.0 | 8.0 | "Take It!" | Romeo Tirone | Manny Coto & Wendy West | November14,2010 | 1.94 |
| 57.0 | 9.0 | "Teenage Wasteland" | Ernest Dickerson | Lauren Gussis | November21,2010 | 2.11 |
| 58.0 | 10.0 | "In the Beginning" | Keith Gordon | Scott Reynolds | November28,2010 | 2.54 |
Question:
How many people wrote episode 9 in the season that was directed by Ernest Dickerson?
Answer:
1.0