Final answer:
Jason's percentile rank of 65 means he performed better than 65% of his classmates.
Step-by-step explanation:
The percentile rank of 65 for Jason in his class of 50 means that he performed better than 65% of his classmates. In other words, 35% of the students in the class scored higher than Jason. To calculate the percentile rank, we compare Jason's score to the scores of all the other students in the class and determine the percentage of students who scored lower than Jason.