In san francisco 30 of workers take public transportation


In San Francisco, 30% of workers take public transportation daily (USA Today, December 21,2005).
In a sample of 9 workers, what is the probability that exactly three workers take public transportation daily (to 4 decimals)?


In a sample of 9 workers, what is the probability that at least three workers take public transportation daily (to 4 decimals)?

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Microeconomics: In san francisco 30 of workers take public transportation
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