SOLUTION: A new drug has been found to be effective in treating 70% of the people afflicted by a certain disease. If the drug is administered to 500 people who have this disease, what are th

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Question 736357: A new drug has been found to be effective in treating 70% of the people afflicted by a certain disease. If the drug is administered to 500 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?
Mean?
Standard Deviation?
Answer by macar(2) About Me  (Show Source):
You can put this solution on YOUR website!
mean = n*p =0.70*500=350
Standard deviation=√ np(1-P) =√0.70•500(1-500)=414