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:
| Week | Event | Air Date | Winning team | Winners club |
| --- | --- | --- | --- | --- |
| 1.0 | Chariot of Champions | July 27, 2008 | Blue Team | Hawaiian Luau |
| 2.0 | Hang Tight | August 2, 2008 | Yellow Team | Game Room |
| 3.0 | Babyface-Off | August 9, 2008 | Red Team | Free Bling Tent |
| 4.0 | Foos It or Lose It | August 16, 2008 | Yellow Team | Hip-Hop House Party |
| 4.5 | Tug of Four | August 16, 2008 | Green Team | 5 extra points and a Chariot Ride |
| 5.0 | UltraMegaUltimateObstacular Relay! | August 30, 2008 | Red Team | None |
Question:
How many weeks have a Winning team of yellow team, and an Event of foos it or lose it?
Answer:
4.0