Peggy Would Like to Conduct a Survey in Her Neighborhood

question 120

Multiple Choice

Peggy would like to conduct a survey in her neighborhood to get homeowners' opinions on the Delmarva proposal to switch to natural gas. Which of the following is an example of a convenience sample?

• A) John randomly chooses three streets and selects every third house on those streets.
• B) John selects the first 25 homes that he passes as he walks into the entrance of the development.
• C) John selects every third house on each street.
• D) John divides the population into two-story, split-level, and ranch houses. Then, he selects a proportional amount of houses from each group.

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Definitions:

Electromyogram

A diagnostic test that measures the electrical activity of muscles in response to stimulation.

Functional MRI

Magnetic resonance imaging uses a magnet to obtain scans of structures of the brain. Functional magnetic resonance imaging (fMRI) provides information on the amount of activity in different brain structures.

Electrocardiogram

A medical test that records the electrical activity of the heart to detect heart problems.

Cognitive Task

A task designed to assess or engage cognitive functions such as memory, attention, or problem-solving.