Question: (a) Find the mean and variance in Exercise 5.64 of the random variable X representing the number of persons among 2000 that die from the

(a) Find the mean and variance in Exercise 5.64 of the random variable X representing the number of persons among 2000 that die from the respiratory infection.

(b) According to Chebyshev's theorem, there is a probability of at least 3/4 that the number of persons to die among 2000 persons infected will fall within what interval?

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