We use a population parameter to make inferences about a sample statistic.
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Q3: Selection bias occurs when the sample is
Q4: The central limit theorem approximation improves as
Q5: For any population X with expected value
Q6: If the expected value of a sample
Q7: Social-desirability bias refers to systematic difference between
Q9: Stratified random sampling is preferred when the
Q10: In stratified random sampling, the population is
Q11: A simple random sample is a sample
Q12: The standard deviation of Q13: The standard deviation of 
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