Select the Sample Most Representative of the Population of Interest

question 71

Multiple Choice

Select the sample most representative of the population of interest in
-A researcher wishes to determine the average number of text messages per month sent by high school students who have cell phones.

• A) Ask a random sample of 100 students how many text messages they send.
• B) Ask a random sample of 100 students with cell phones how many text messages they send.
• C) Interview 100 students in the mall who are seen talking on their cell phones.
• D) Randomly select the cell phone records of 100 high school students.

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Definitions:

Public Speaking

The act of performing a speech to a live audience with the goal of informing, persuading, or entertaining them.

Audience Involved

The specific group of people targeted or reached by a particular action, message, or piece of content.

Speech Anxiety

The fear or nervousness associated with speaking in front of an audience.

Writer's Block

A condition, often temporary, where an author loses the ability to produce new work or experiences a creative slowdown.