The proportion of students having brown eyes, given that they had brown hair is 0.75
From what we have in the question, we want to calculate the proportion of students who have brown eyes, given that they have brown hair
To calculate this, we will be using the baye's probability approach
Let the event that a student has a brown hair be B and the event that a student has a brwon eyes be A
We have it that;
[tex]\begin{gathered} P(A|B)\text{ = }\frac{P(AnB)}{P(B)} \\ =\text{ }\frac{30}{40}=\text{ 0.75} \end{gathered}[/tex]
