A Large Marketing Firm Has Decided to Do a Study

question 20

Multiple Choice

A large marketing firm has decided to do a study that describes the needs of practicing teachers regarding instructional materials. The vice-president wants data from 400 practicing teachers. Shawna, a researcher with the firm, sends a mass mailing and when 400 surveys are returned she analyzes the data. Shawna is best illustrating which sampling strategy?

• A) Cluster sampling
• B) Quota sampling
• C) Purposive sampling
• D) Convenience sampling

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Definitions:

Storage Classes

Specifications in programming languages like C and C++ that determine the lifetime, visibility, and memory location of variables.

Auto

A keyword in the C and C++ programming languages that was originally used to declare automatic variables, now repurposed in C++11 to infer the type of the variable from its initializer.

Register

A small, fast storage location within a computer's CPU where specific types of instructions are stored and processed.

Storage Classes

Specifies the visibility and lifetime of variables and/or functions within a C or C++ program.