Regarding Surveys and Polling, Which of the Following Statements Is

question 562

Multiple Choice

Regarding surveys and polling, which of the following statements is FALSE?

• A) Representative samples are often obtained by randomly selecting who will be included in the survey.
• B) Surveys done by magazines, websites, and online information services have been shown to be as accurate as the Gallup and Harris polls.
• C) People are often polled by telephone or the Internet, which has made it easier to obtain large samples.
• D) A biased sample does not accurately reflect the population from which it was drawn.

---

Definitions:

Wolff-Kishner Reduction

A chemical reaction used to convert carbonyl groups (C=O) into methylene (CH2) groups by treatment with hydrazine (N2H4) and a strong base.

Ketone

An organic compound characterized by a carbonyl group (C=O) bonded to two carbon atoms, common in sugars and fragrances.

Hydrazone

A compound formed by the reaction of a hydrazine with a ketone or aldehyde, characterized by a –NHN=C– linkage.

Semicarbazone

Derivatives of semicarbazide that are used as derivatives to characterize aldehydes and ketones, typically involving the formation of crystalline precipitates.