Stratified random sampling technique

Reference no: EM1314820

Question 1: When a group is selected from a population on the basis of sharing the same percentages of trait characteristics as are known to exist in the population, then the group so selected would constitute:

a) a random sample

b) a stratified sample

c) a biased sample

d) a sampling distribution

Question 2: Sampling error is assumed to result:

a) when any sample is selected

b) only when a non-representative sample is selected

c) only when a biased sample is selected

d) only when the researcher makes a mistake

Reference no: EM1314820

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