15% of the population is left handed. 100 people are randomly selected and checked for handedness. On average how many people selected will be left handed and this will be typically off by? What is the probability that at least 20 people will be left handed? What is the probability that at most 12 people will be left handed? How many right handed people do you expect out of those selected? What is the probability that the first or second person selected is the first person that is left handed? What is the probability that the majority of the people selected are right handed?