SOLUTION: Q3: Assume the number of episodes per year of otitis media, �a common disease of the middle ear in early childhood� is 1.6 episodes per year. a. Find the probability of not gettin

Question 919389: Q3: Assume the number of episodes per year of otitis media, �a common disease of the middle ear in early childhood� is 1.6 episodes per year.
a. Find the probability of not getting any episodes of otitis media in the first year of life.
b. Find the probability of getting 2 or more episodes of otitis media in the first 2 years of life.
c. Find the probability of getting 2 episodes of otitis media in the first 6 months of life.
d. Find the Expected number and variance of episodes of otitis media in the first 1.5 years of life?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Poisson Distribution: avg = 1.6/yr
a. P = poissonpdf(1.6,0)
b. P = 1 - posissoncdf(3.2,1)
c. P = poissonpdf(.8,2)
d. Exp(1.5yrs) = 2.4 , variance the same: 2.4
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