A Classroom Has a Presentation System That Consists of Four

question 62

Multiple Choice

A classroom has a presentation system that consists of four components, each of which must activate if the system is to work adequately. The first component has a reliability of 0.97, the second component has a reliability of 0.99, the third component has a reliability of 0.97, and the fourth component has a reliability of 0.93. What is the overall system reliability?

• A)0.87
• B)0.95
• C)0.93
• D)0.97
• E)0.89

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Definitions:

Newman Projection

A method of drawing a molecule to visualize the conformational relationship between different atoms or groups in terms of their spatial orientation, usually focusing on carbon-carbon bonds.

Perspective Structure

A method of drawing molecules to represent three-dimensional structure on a two-dimensional plane, highlighting the spatial arrangement of bonds.

Conformation

The spatial arrangement of atoms in a molecule that can be altered by rotation around single bonds, without breaking chemical bonds.

Eclipsed Conformation

A molecular conformation where substituents on adjacent atoms align with each other, typically resulting in higher steric strain.