SOLUTION: A certain drug cures 72% of all sick people. If seven people are sick, what is the probability that at least six of them will be cured by this drug?
Explain your reasoning.
Question 1179896: A certain drug cures 72% of all sick people. If seven people are sick, what is the probability that at least six of them will be cured by this drug?
Explain your reasoning. Answer by ikleyn(52803) (Show Source):
You can put this solution on YOUR website! .
A medicine cured 72% of people who are sick. If 7 people are sick what is the probability
that at least six of them will be cured by the medicine?
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It is a binomial distribution probability problem.
- number of trials n = 7;
- number of success trials k >= 6;
- Probability of success on a single trial p = 0.72.
We need calculate P(n=7; k>=6; p=0.72).
To facilitate calculations, I use an appropriate online (free of charge) calculator at this web-site
https://homepage.divms.uiowa.edu/~mbognar/applets/bin.html
It provides a convenient input and output for all relevant options/cases.
P(n=7; k>=6; p=0.72) = 0.37336 (rounded). ANSWER
