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In the Healthy Handwashing Survey conducted by Bradley Corporation, it was found that 64% of adult...

In the Healthy Handwashing Survey conducted by Bradley Corporation, it was found that 64% of adult Americans operate the flusher of toilets in public restrooms with their foot. Suppose a random sample of 20 adult Americans is obtained and the number who flush public toilets with their foot is recorded.

  1. Find the probability that exactly 12 flush public toilets with their foot.

  2. Find the probability that at least 16 flush public toilets with their foot.

c. Would it be unusual to find more than 17 to who flush public toilets with their foot? Why?

Math   Statistics-And-Probability   
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