A survey on British Social Attitudes asked respondents if they had ever boycotted goods for ethical reasons (Statesman, January 28, 2008). The survey found that 21% of the respondents have boycotted goods for ethical reasons.
In a sample of six British citizens, what is the probability that two have ever boycotted goods for ethical reasons?
In a sample of six British citizens, what is the probability that at least two respondents have boycotted goods for ethical reasons?
In a sample of tweleve British citizens, what is the probability that none have boycotted goods for ethical reasons?