A Local Electronics Retailer Recently Conducted a Study on Purchasers

question 68

Multiple Choice

A local electronics retailer recently conducted a study on purchasers of large screen televisions. The study recorded the type of television and the credit account balance of the customer at the time of purchase. They obtained the following results. What percentage of purchases were plasma televisions by customers with the smallest credit balances?

• A) 50.0
• B) 39.2
• C) 56.3
• D) 34.8
• E) 19.6

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Definitions:

REM Sleep

Rapid Eye Movement sleep, a sleep stage characterized by eye movements, increased brain activity, and vivid dreams.

Alpha Waves

The brain wave pattern associated with deep relaxation.

Delta Waves

Slow brain waves that are present in deep sleep and in brain activities associated with unconsciousness.

EEG

Electroencephalography, a noninvasive method to record electrical activity of the brain used in the diagnosis of neurological disorders, sleep disorders, and for research in neuroscience.