Series: a link to a problem, the whole system is wrong
Reliability series: multiplying the reliability of all subsystems: R = R1 * R2 * Rn
Series failure rate: add up all the failure rate, approximate formulas may not be accurate
Parallel: the whole problem, the problem will
Parallel Reliability: 1-n th multiplication failure rate: 1- (1-R1) * (1-R2) * (1-Rn)
Parallel failure rate: l- parallel Reliability
TMR system: majority rule. (Not test the reliability)
Example: series-parallel Reliability
