In a class of students, the following data table summarizes how many students have a cat or a dog. What is the probability that a student chosen randomly from the class
has a cat and a dog?

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m