Twelve Days of Christmas
Today we moved from theoretical probability (what SHOULD happen) to experimental probability (what DID happen).
We sat in a circle. I had a container with 364 beads. There were 12 different colors. Each color represented a gift (black for partridge in a pear tree), and there were the same number of each bead as gifts given (12 black for the 12 days "my true love" received a partridge in a pear tree). We passed the container around 100 times to see how many of each "gift" we pulled. We recorded our data on our Experimental Probability spreadsheet:
Once we had our data, we turned the information into a fraction, then a decimal, and then a percent. It was much easier today because we were dealing with a denominator of 100! So a fraction of 3/100 = .03 = 3%.... no calculators needed! The interesting part is that each classes' data is different because you are dealing with luck! So the data we gathered in each class is below:
Finally, the classes were asked to complete an exit ticket. They were to write two generalizations comparing the Theoretical Probability Circle Graph to the Experimental Probability Circle Graph.
- Complete the circle graph/exit ticket
- Countdown 2.3