Blue 20, brown 12, green 10, amber 8,hazel 6, gray 4. If a student is randomly chosen from this group, what is the chance of selecting a student with blue eyes?
There are a total of 20 + 12 + 10 + 8 + 6 + 4 = 60 students in the group.
The chance of selecting a student with blue eyes is equal to the number of students with blue eyes divided by the total number of students:
Probability of selecting a student with blue eyes = 20/60 = 1/3 or approximately 0.3333 (rounded to four decimal places).
To calculate the chance of selecting a student with blue eyes, you need to divide the number of students with blue eyes by the total number of students in the group.
From the given information, we know that there are 20 students with blue eyes and a total of:
20 + 12 + 10 + 8 + 6 + 4 = 60 students in the group.
Therefore, the probability of selecting a student with blue eyes is:
20 (number of blue-eyed students) / 60 (total number of students) = 1/3 or approximately 0.3333 (33.33%).