________, Which Are Small Devices That Monitor Codes Embedded into Audio

question 82

Multiple Choice

________, which are small devices that monitor codes embedded into audio streams of media that consumers receive which are equipped with GPS, that consumers clip onto their belts and wear all day, were developed by ________.

• A) PPMs; Nielsen
• B) PPMs; Arbitron
• C) PPMs; ComScore
• D) GPSs; Nielsen
• E) GPSs; Arbitron

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Definitions:

Density

The mass per unit volume of a substance, used as a measure of its compactness.

Seismic Tomography

A technique using the arrival times of seismic waves to identify materials with different physical properties within the Earth.

Seismic Waves

Vibrations that travel through the Earth’s interior or along its surface, generated by earthquakes or other earth movements.

Medical Device

An instrument, apparatus, implant, or similar article used for diagnosing, preventing, or treating disease or other conditions.