When Harris Interactive surveyed 1013 adults, 91% of them said that they washed their hands after using
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When Harris Interactive surveyed 1013 adults, 91% of them said that they washed their hands after using a public restroom. But when 6336 adults were observed, it was found that 82% actually did wash their hands. How can we explain the discrepancy? Which percentage is more likely to accurately indicate the true rate at which people wash their hands in a public restroom?
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