A Gallup Poll conducted in November 2002 examined how people perceive the risks associated with smoking....
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A Gallup Poll conducted in November 2002 examined how people perceive the risks associated with smoking. The following table summarizes the data on smoking status and perceived risk of smoking. Perceived Risk Not Too Harmful Smoking Status Very Harm Somewhat Harmful Not at All Harmful Current Smoker 60 30 Former Smoker 78 16 Never Smoke 86 10 (a) What is the probability that a randomly selected US adult is a former smoker? (b) What is the probability that a randomly selected US adult views smoking as very harmful? (c) What is the probability that a randomly selected US adult views smoking as very harmful given that the selected individual is a current smoker? A Gallup Poll conducted in November 2002 examined how people perceive the risks associated with smoking. The following table summarizes the data on smoking status and perceived risk of smoking. Perceived Risk Not Too Harmful Smoking Status Very Harm Somewhat Harmful Not at All Harmful Current Smoker 60 30 Former Smoker 78 16 Never Smoke 86 10 (a) What is the probability that a randomly selected US adult is a former smoker? (b) What is the probability that a randomly selected US adult views smoking as very harmful? (c) What is the probability that a randomly selected US adult views smoking as very harmful given that the selected individual is a current smoker?
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