Case 2 Perry Is Writing a Report on the History

question 160

Multiple Choice

Case 2 Perry is writing a report on the history of cellular data services and wants to investigate the differences between the generations ____ introduced an always-on data transfer at 171.2 Kbps to CDMA, TDMA, and GSM networks.

• A) 1G
• B) 2G
• C) 2.5G
• D) 3G

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Definitions:

Experimental Group

The subset of participants in an experiment who are exposed to the independent variable.

Secondary Research

The analysis and interpretation of existing data or information that was collected by someone else, as opposed to primary research where data is collected firsthand.

Historical Documents

Original records and texts that pertain to past events, serving as evidence or sources of history.

Hypothesis

A proposed explanation made on the basis of limited evidence as a starting point for further investigation.