On a statistics theory class, the teacher assigned each student a homework to do a real survey. Dull since this task is, Charlie decided to survey the ways how people entertain.
He first came to an apartment building near campus, and knocked at a door. A man opened it.
Charlie asked, "I'm doing a survey sir, I hope you can do me a favor. May I have your name?"
"John." The man answered.
"Could you tell me what do you do daily for entertainment?" asked Charlie.
The man thought for a while and said," Watch bubble in the bathtub."
Charlie felt it interesting. He put the answer down on his notebook, and went on to the the next door.
At the second door, He asked the same question:"What's your name sir?"
"Jeff."
"Well, I'm doing a survey. I want to know what do you usually do for entertainment." said Charlie.
This man thought and answered, "Watch bubble in the bathtub."
Charlie felt more interested in it, but a little confused. He walked door to door, visited all the men in the building. But the answers to his question were all the same. He was very very confused, and walked out the building.
Then he walked up to a flat opposite the building.
The door opened, Out came a beautiful college girl.
Charlie introduced his survey to the girl, "What's your name, Miss?"
"My name is Bubble." the girl answered.