Author Question: Randomly selected subsamples of different groups are represented in the total sample for a research. ... (Read 92 times)

asd123

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Randomly selected subsamples of different groups are represented in the total sample for a research. This type of probability sample is a ________ sample.
 a. stratified
 b. convenience
 c. quota
 d. cluster

Question 2

One way to control systematic error in an experiment is to match the respondents on the basis of pertinent background information, such as gender.
 
 Indicate whether the statement is true or false



Juro

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Answer to Question 1

a

Answer to Question 2

true



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