Which of the following statements about sampling is true?
a. It is pretty easy to draw a random sample of the population in order to measure public opinion accurately.
b. The larger the sample the more closely the sample’s answers will closely approximate the answers if the entire population could be asked.
c. Larger samples are always better so the results from a sample of 2,000 will be twice as accurate as the results from a sample of 1,000.
d. Pollsters who can draw good samples can virtually eliminate any errors in polling.
b. The larger the sample the more closely the sample’s answers will closely approximate the answers if the entire population could be asked.
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Which of the following has been shown to be essential to improving the economies of autocratic countries through development aid?
a. market-based reforms b. modern banking systems c. high-speed internet d. transportation infrastructure