PROBLEM TWO reliability A production process uses three machines A, B, and C with reliabilities of 0.97, 0.97, and 0.96, respectively. The machines are arranged such that if one breaks down, the others must shut down. The process engineers have decided to add a backup for each machine. Each of the backup machines will have the same respective reliabilities as the original three. The switches used for each backup machine have a reliability of 0.99. What is the reliability of the system