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A college president wants to find out which courses are popular with students. What procedure would be most appropriate for obtaining an unbiased sample of students?

A. Survey a random sample of students from the English department.

 

B. Survey the first hundred students from an alphabetical listing.

 

C. Survey a random sample of students from a list of the entire student body.

D. Have students voluntarily mail in their preference.
in Data Science & Statistics by Platinum (141,884 points) | 75 views

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Examine each of the choices and make sure they satisfy the two conditions for an unbiased sample.

Eliminate \(\mathrm{A}\) and \(\mathrm{B}\) because they do not give every member of the population an equal chance of being chosen. (Only students in English or in the first hundred on the list have a chance.)

Eliminate D because not all students will mail their preference. (They may not be able to afford the postage, for example.)

The correct answer is \(C\) It selects persons from the target population (students) and it gives every student an equal chance of being chosen.
by Platinum (141,884 points)

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