If not all members of a population have a non-zero chance of being selected for a sample, then
a. the sample may not be representative of the population.
b. there is a risk of inappropriately generalizing results beyond the sample.
c. the sample has been chosen using nonprobability sampling.
d. All of these are true.
Question 2
If your professor is only interested in the test performance of students in her class, the class is her
a. Pppulation.
c. biased sample.
b. random sample.
d. non-probability sample.
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