a b and c please.

According to a study done by a university student, the probability a randomly selected individual will not cover his or her mouth when sneezing 0 267. Suppose you sit on a bench in a mall and observe people's habits as they sneeze (a) What is the probability that among 16 randomly observed individuais exactly do not cover their mouth when sneezing? (b) What is the probability that among 16 randomly observed individuals fewer than 4 do not cover their mouth when sneezing? (c) Would you be surprised it, after observing 16 individuals, fewer than half covered their mouth when sozing? Why