"Chance Encounters"

Adeline's Report: Rules of the Game
1. Close your eyes and pick a marble.
2. Drop the marble through the hole in the top of the box without looking.
3. If the marble drops in a cup numbered 1-4 you lose.
4. If the marble drops in a cup numbered 5-8 you win.
5. The experimental probability is 50%, 1/2 , 4 in 8 or 0.5.

Two hundred twenty-two people played our game. One hundred seventy one people won and fifty one people lost. Our game was a great success because it was an easy game to play. All the players had to do was drop a marble through a hole in the top of a box. It was very suitable for grades kindergarden through grade two. I think the stickers were also a good idea because the small children liked them. I did the recording and Hannah supervised the game. We tried swapping places but Hannah kept losing track of the score.

The experimental probability was different from the theoretical probability because there was a slight slant in the bottom of the box twoards the cup number eight--so most people won. I really enjoyed it.

Hannah's Report:The first thing that happened was when I was setting up the game. Everybody came and crowded around the game it was okay again when they had to go to class.

The Probability Fair started at 8:45 in the morning and stopped at 10:30 in the morning. We had 2 hours and 15 minutes to play all the games with 480 kids. There were 8 games there to play. I was number two with Adeline.

Sometimes I was saying to myself is the line ever going to finish and finally it did. The time we had did not seem so long. Our game was always busy with kids I guess that was because our game was easy to play and you put a marble in and some people played with there friends.

We thought at first it would be a 50 /50 chance of wining but now we think it is a 75% you are going to win and 25% you are going to lose.