Assume the number of episodes per year of otitis media, a common disease of the middle ear in early childhood, follows a Poisson distribution with parameter λ = 1.6 episodes per year. 

i) Find the probability of getting 3 or more episodes of otitis media in the first 2 years of life.

ii) Find the probability of not getting any episodes of otitis media in the first year of life. An interesting question in pediatrics is whether the tendency for children to have many episodes of otitis media is inherited in a family. 

iii) What is the probability that 2 siblings will both have 3 or more episodes of otitis media in the first 2 years of life? 

iv) What is the probability that exactly 1 sibling will have 3 or more episodes in the first 2 years of life?