Advanced Higher Statistics Practice Questions - Advanced Higher Statistics (Qualifications Scotland SCQF Level 7) Exam

Which of the following scenarios best illustrates non-response bias in a statistical survey?

An interviewer subtly prompts respondents toward a specific answer A telephone poll excludes individuals who do not own a landline telephone A survey sent by email receives responses primarily from individuals with strong positive or negative opinions while others ignore it A measurement device consistently overstates the weight of agricultural yields by 5 grams

Correct Answer:

A survey sent by email receives responses primarily from individuals with strong positive or negative opinions while others ignore it

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