At age six, Kylie is 50 inches tall. Her height has a z-score of 1.8. At age four, Hannah is 48 inches tall. Her height has a z-score of 2.1. Relative to girls their ages, who is taller? Kylie is taller because her z-score is lower than Hannah’s z-score. Hannah is taller because her z-score is higher than Kylie’s z-score. Kylie is taller because her z-score is closer to the mean than Hannah’s z-score. Hannah is taller because her z-score is closer to the mean than Kylie’s z-score.