
Concept explainers
To find: The survey question that is unbiased.

Answer to Problem 5MCQ
The correct option is D.
Explanation of Solution
Given:
The given equations are,
A Do you like today?
B Which is your theme park, park A or Park B
C Don’t you think carrot taste better than celery?
D How often do you go to the movies?
Conclusion:
Consider that the survey is unbiased only if every individual have equal right to make a choice and being selected.
From the given choices the question that ask the population about the movies does not bound to choose a fixed answer. This is not the case with the other options. So the correct option is D.
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