The Chief of the Design Team for a New Missile

question 20

Multiple Choice

The chief of the design team for a new missile wants to know the reliability of its guidance system.This system is comprised of three components: a gyroscope,which has a random failure rate of 3 in every 10 launches; a computer,which has a random failure rate of 2 in every 10 launches; and a rocket motor,which has a random failure of 1 in every 10 launches.What is the probability that the guidance system will perform reliably during a launch?

• A)0.300
• B)0.504
• C)0.700
• D)0.889
• E)0.910

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Definitions:

Kinetograph

The first viable motion-picture camera, invented by W. K. L. Dickson for the Edison Manufacturing Company and patented in 1891.

Kinetoscope

Thomas Edison’s peephole viewer, in which short, primitive moving pictures could be seen.

Zoetrope

A motion toy consisting of a bowl-like apparatus with slots for viewers to peer through.

Daguerreotype

An early photographic process developed by Louis Daguerre in the 1830s, producing a silver image on a polished copper plate.