As part of a class project, a university student surveyed students in the cafeteria to look for a relationship between the students’ eye color and hair color. The table contains the survey results.

The percentage of the sample population with brown eyes and black hair is larger than the percentage of the sample population with blue eyes and black hair by percentage points. (Round off your answer to the nearest whole number.)

Question

As part of a class project, a university student surveyed students in the cafeteria to look for a relationship between the students’ eye color and hair color. The table contains the survey results.

The percentage of the sample population with brown eyes and black hair is larger than the percentage of the sample population with blue eyes and black hair by  percentage points. (Round off your answer to the nearest whole number.)

anonymous · Answer

Eye Color	 
Hair Color	Blue	Gray	Green	Brown	Marginal Total
Blond	42	5	21	10	78
Red	12	22	19	12	65
Brown	22	5	12	34	73
Black	9	3	11	64	87
Marginal Total	85	35	63	120	303