Use the transition diagram to express the stochastic matrix corresponding to the states and transitions represented in this system.

Transition diagram showing states A and B$.$ Probabilities of transitions are $0\mathrm{.}3$ from A to A$,0\mathrm{.}7$ from A to B$,0\mathrm{.}8$ from B to B$,$ and $0\mathrm{.}2$ from B to A$.$