Judging from Recent Experience, 5 Percent of the Computer Keyboards

question 19

Multiple Choice

Judging from recent experience, 5 percent of the computer keyboards produced by an automatic, high-speed machine are defective. If six keyboards are randomly selected, what is the probability that none of the keyboards are defective?

• A) 0.167
• B) 0.735
• C) 0.500
• D) 1.00
• E) 0.2321

---

Definitions:

EEG Record

A graphical record of electrical activity in the brain, measured by electrodes placed on the scalp, used in diagnosing neurological conditions and in neuroscience research.

Sleepwalking

Sleepwalking is a sleep disorder causing people to get up and walk while in a state of sleep, often having no memory of the activity.

Paradoxical Sleep Waves

Brain waves associated with REM (rapid eye movement) sleep, during which dreaming usually occurs and the body experiences atonia but the brain is active.

N3 Sleep

The third stage of non-REM sleep that is characterized by deep sleep, during which it is hardest to awaken someone, and when the body repairs and regrows tissues.