Final answer:
Destiny performed better in her physics class with a z-score of 2.34 compared to her algebra 2 class where she had a z-score of 1.52, since her physics z-score is higher.
Step-by-step explanation:
Understanding z-scores helps us determine how a student has performed relative to their peers. A z-score indicates how many standard deviations an element is from the mean. The higher the z-score, the better the performance compared to the average of the peer group.
Destiny's physics test score had a z-score of 2.34, which means she scored 2.34 standard deviations above the mean for her class. On her algebra 2 test, she had a z-score of 1.52, indicating she was 1.52 standard deviations above the class mean. Since a z-score of 2.34 is higher than a z-score of 1.52, we can conclude that Destiny performed better relative to her peers in her physics class than she did in her algebra 2 class.