Ex. Coin flipping Activity:

• Flip a coin 20 times.
• Count the number of heads that you observe.
• Use that value to estimate p = probability of observing a head.
• Repeat the experiment 3 times.

Questions:

• Did you get the same value for p for each of your trials?
• Did each of you get the same results as everyone else on their 3 trials?
• What causes the difference in the results?