Transition diagram from transition relation formula

Question

Hello,

I was just trying out some transition diagrams from relation formulas and came up with this exam question where my solution contradicted with it. Following is the exam solution.

and then following is my solution.

What I don't understand is the relation between state {p,q} and state {p}. Can you please explain?

Answer 1

You are right, the transition diagram is wrong. There is no transition from state {p,q} to state {q}. Hence, the explanation to ignore state {q} is not even needed for part d.