In a large population, 73% of the population are short-sighted. A samples of 7 people is randomly chosen from the population. Find the probability that
3 such samples of 7 people are taken.
(a) Find the probability that there are altogether 10 people who are short-sighted from the 3 samples.
A random sample of n people is chosen instead from the same population
(b) Find the minimum number n such that there is at least 99% chance of having one or more people who are short-sighted.