Eye Color
Hair
Color Blue Gray Green Brown Marginal
Totals
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
Totals 85 35 63 120 303
From the sample population of students with gray eyes, what is the relative frequency of students with red hair?
To find the relative frequency of students with red hair among the sample population with gray eyes, we need to divide the number of students with gray eyes and red hair by the total number of students with gray eyes.
The number of students with gray eyes and red hair is 22.
The total number of students with gray eyes is 35.
So, the relative frequency of students with red hair among the sample population with gray eyes is 22/35, which simplifies to approximately 0.6286 or 62.86%.