There’s an old game show called “Let’s Make a Deal” that introduced game show host Monty Hall to American viewers and he’s often credited with what’s called the “Monty Hall Problem”.
In it you have three doors. Two of them contain goats and one a car. A contestant picks a door and the show host opens up one of the doors that they did NOT pick and does NOT have the car. They then ask if the contestant wants to switch their choice.
Seeing as they have 50/50 odds, the majority of contestants stick with their “gut feeling”, only to groan as their door is opened and they more often than not see the car located in the other door.