I watched an interesting show on the Science channel. They filled a jar with jelly beans. It had something like 4515 beans in it. Then they went around and asked people to guess how many beans were in the jar and wrote down the answer.Quote from abattia:
... but his estimate may be closer to the right answer than the man with just one!
Some guessed a thousand, some guessed 10,000, but after they got 25 guesses, they averaged them all together, and the answer came out to 4510.