2Thumbtack ExperimentConsider the following experiment: toss 10 thumbtacks up into the air and let them fall on a flat surfaceHow many would you expect to land with the point straight up?
3Thumbtack Experiment Lets try the experiment Toss 5 thumbtacks up and let them land.Write down your individual data: how many landed with the point straight up?Group data
4Thumbtack ExperimentBased on our experiment…What is the probability that a randomly chosen thumbtack that is tossed up will land with the point side straight up?Experimental vs. TheoreticalIs there a way to find the theoretical probability for this experiment?
5Dice Experiment Work with your elbow partner One person rolls 2 diceOne person tallies the sum of the 2 diceRecord your data on the posterHistogram
6Dice ExperimentBased on our experiment…What is the probability that the sum of the 2 dice is2?5?7?11?
7Dice Experiment Experimental vs. Theoretical Is there a way to find the theoretical probabilities for this experiment?Equally Likely Outcomes ModelSample Space of equally likely outcomes
9Dice Experiment Compute (theoretical) probabilities Compare these results to our experimental probabilities
10M&M Experiment Dump out your bag of M&Ms Consider the experiment: an M&M is randomly selected from your pile of M&MsWhat is the probability of selecting each of the available colors?
11M&M Experiment Compare your results with your table group members Now compute the probability of selecting each of the available colors for your table groupRecord your group data on the poster
12M&M ExperimentThe theoretical probabilities of obtaining each color from a bag of M&Ms are depicted in the following table:ColorProbability of that colorYellow0.14Red0.13Orange0.20BrownGreen0.16BlueWhat is the probability of blue?
13M&M ExperimentMake a prediction: How many of each color would be likely to be found in a bag of 50? 100? 250? 500? 1000?