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The efficacy of the mumps vaccine is about 80%; that is, 80% of those receiving the...

The efficacy of the mumps vaccine is about 80%; that is, 80% of those receiving the mumps vaccine will not contract the disease when exposed. Assume that each person’s response to the mumps is independent of another person’s response.

a. Find the probability that at least one exposed person will get the mumps if 10 people are exposed.

b. How many vaccinated people must be exposed to the mumps before the probability that at least one

Math   Statistics-And-Probability   
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