A System Consists of Two Components, Each of Which Must

question 10

Multiple Choice

A system consists of two components, each of which must activate if the system is to activate. One component has a reliability of .99. The other has a reliability of .95. The components are independent of one another with respect to reliability. What is the overall system reliability?

• A) .99
• B) .95
• C) .94
• D) .90
• E) Cannot be determined with this information.

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Definitions:

Formal Concepts

Abstract ideas or categories defined by a set of rules or characteristics that objects or individuals must possess to be included in the category.

Prototypes

A cognitive representation of a typical member of a category, used to enhance memory and identification by providing examples that epitomize common features within that category.

Representativeness Heuristic

A thinking strategy based on how closely a new object or situation is judged to resemble or match an existing prototype of that object or situation.

Availability Heuristic

A mental shortcut that relies on immediate examples that come to a given person's mind when evaluating a specific topic, concept, method, or decision.