As part of a class project, a university student surveyed the students in the cafeteria lunch line to look for a relationship between eye color and hair color among students. This table contains the results of the survey. From the sample population of students with blond hair, what is the relative frequency of students with green eyes?
You would take the number of people with blonde hair with green eyes, which is 21, and divide that by the total number of people with blonde hair, which is 78.
