Imagine you are playing in a game show. You are shown three doors behind one door there is a car, behind others there are goats.
Now you select a door. The host open either of the other two doors. The opened door contains a goat. The host than gives you an option. To switch your choice. You can either stick to your chosen door or switch to the other door.
Will switching the door improve your probability of winning the car???????????
Solution: The solution is well known. No prize for guessing the correct one but the one who calculates it first will get an Apple ipod. 🙂 kidding