Evaluating Outcomes with Probability: Tutorial Activity
Elena, Keenan, and Gerard are planning a movie night, but can't decide which movie to watch. Elena wants to watch an
action movie, Keenan wants to watch a comedy, and Gerard wants to watch a science fiction movie. Since no one is
budging on their movie preference, the three friends propose different methods for choosing the movie they'll watch:
• Elena suggests they call up her sister and have her make the choice for them.
• Keenan suggests they roll two dice and find the sum of the dice. If the sum equals 2, 3, 4, or 7, then they'll watch an
action movie. If the sum equals 8, 9, or 10, then they'll watch a comedy. If the sum equals 5, 6, 11, or 12, then they'll
watch the science fiction movie.
. Gerard suggests they flip a coin two times. If both flips land on heads, then they watch an action movie. If both flips
land on tails, then they watch a comedy. And if one flip lands on heads and one lands on tails, then they watch a
science fiction movie.
Part A
Explain what you think it means to be fair, in terms of this situation.