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Series System Reliability as a Product of Block Reliabilities

A chain of independent blocks survives only if every block survives, so reliabilities multiply and, under the constant-rate model, failure rates add. This is the result that explains why adding parts always costs reliability and why part-count reduction is a reliability action.

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A chain of independent blocks survives only if every block survives, so reliabilities multiply and, under the constant-rate model, failure rates add. This is the result that explains why adding parts always costs reliability and why part-count reduction is a reliability action.

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