Exercise 7. Avian flu is a disease transmitted to humans from birds, Untreated, it has a mortality rate of 60%, meaning that the probability th catches the avian flu dies with probability p = 0.6. In a given city, 20 individuals catch the avian flu. (a) Explain why it makes sense why the number of individuals who using a binomial random variable. (b) Assuming the individuals are untreated, calculate the expected n (c) Calculate the probability that at least one individual survives the (d) Under a new treatment, at least 15 of the 20 individuals survive. that we would see so many individuals surviving if the mortality rate w

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