A total of 66,836 students applied to a medical school in California. Consider all of these applicants to comprise a population. The average GPA for this population is 3.75. Further, 20% of this population is composed of California residents, 10% of this population is composed of international students, and the average age of the students in this population is 22.5 years. When a random sample of students was drawn from this population, the average GPA of the sample was 3.81, the percentage of California residents in the sample was 18%, the percentage of international students in the sample was 12%, and the average age of the sample was 23.5 years. Which of the following numbers is a statistic in this example?

Group of answer choices

3.81

20%

3.75

None of the answer options are statistics.

22.5