4, According to a recent report from the US. National Center for Health Statistics, roughly 1.3 percent of the adult American population suffers from the respiratory disease emphysema. Suppose that researchers at the center take a random sample of 150 adult Americans. {a} Hoyt.r many individuals from mis group would you expect to have emphysema? (b) What is the exact probability that at most two individuals from this group have emphysema?I (c) Approximate the probability in part (b) using an appropriate Poisson distribution. (d) Approximate the probability in part (b) using an appropriate normal distribution