Final answer:
Jessica scored at the 68th percentile in a normal distribution. She did better than 32% of students.
Step-by-step explanation:
In a normal distribution, the percentile represents the percentage of values that are equal to or below a given value.
In this case, Jessica scored at the 68th percentile, which means that 68% of students scored equal to or below her.
To find the percentage of students that Jessica did better than, subtract the 68% from 100%: 100% - 68% = 32%.
Therefore, Jessica did better than 32% of students.