A survey of 100,000 adults found that 5% of Americans walk to work. Which of the following could be used to simulate the results of this survey and develop a margin of error?
A. Take a spinner that has 20 sections and mark one section. Spin the spinner 100,000 times. Record the portion that lands on the marked section. Do this 100 times. The margin of error will be half the distance of the centermost 95% of proportions.
B. Flip a coin and record the responses. Do this 100 times. The margin of error will be half the distance of the centermost 95% of proportions.
C. Ask 20 random people if they walk to work and record responses. Do this 100,000 times.
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