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A new drug has been found to be effective in treating 80% of the people afflicted...

A new drug has been found to be effective in treating 80% of the people afflicted by a certain disease. If the drug is administered to 300 people who have this disease, what are the mean and the standard deviation of the number of people for whom the drug can be expected to be effective? (Round your standard deviation to two decimal places.)

mean: _____ people

standard: _______ deviation people

math   Statistics-And-Probability   
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