The stem-and-leaf plots compare the ages of 30 actors and actresses at the time they won an award. Complete parts a through d below. a. What is the age of the youngest actor to win the award? years old b. What is the age difference between the oldest and the youngest actress to win an award? years c. What is the oldest age shared by two actors to win an award? years old d. What differences do you observe between the two stem-and-leaf plots? What explanations can you offer for these differences?