EC > GATE 2022 > Probability Theory
A state transition diagram with states A, B, and C, and transition probabilities p1, p2, …, p7 is shown in the figure (e.g., p1 denotes the probability of transition from state A to B). For this state diagram, select the statement(s) which is/are universally true.
A
p2 + p3 = p5 + p6
B
p1 + p3 = p4 + p6
C
p1 + p4 + p7 = 1
D
p2 + p5 + p7 = 1

Correct : c

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