Author Question: Which of the following are true with respect to representativeness? a. a sample represents a ... (Read 39 times)

dakota nelson · **on:** Aug 13, 2018

Which of the following are true with respect to representativeness?

a. a sample represents a population's if it is exactly the same on all relevant variables
b. a sample is representative if it approximates the population
c. a sample needs to be representative of the population on all variables
d. a representative sample is only obtained when a simple random sample is used

Question 2

Which of the following is not a concern about bias when selecting a sample?

a. selecting a sample based upon convenience
b. using probability statistics for drawing a sample
c. drawing a sample on a first come, first serve basis
d. the researcher's personal bias