Decide Whether or Not the Matrix Is a Transition Matrix $\left[\begin{array}{ccc}\frac{4}{8} & \frac{1}{8} & \frac{3}{8} \\1 & 0 & 0 \\\frac{4}{9} & 0 & \frac{5}{9}\end{array}\right]$

True/False

Decide whether or not the matrix is a transition matrix.
- $\left[\begin{array}{ccc}\frac{4}{8} & \frac{1}{8} & \frac{3}{8} \\1 & 0 & 0 \\\frac{4}{9} & 0 & \frac{5}{9}\end{array}\right]$