The probability is determined by
[tex]\begin{gathered} P(\text{has a dog given has a cat})=\frac{\text{Number of people who has a dog and who has a cat}}{\text{Number of people of who has a cat}} \\ P(\text{has a dog given has a cat})=\frac{6}{6+2} \\ P(\text{has a dog given has a cat})=\frac{6}{8} \\ P(\text{has a dog given has a cat})=\frac{3}{4} \end{gathered}[/tex]
Therefore, the probability that a student has dog given that they have a cat is 3/4 or 0.75
