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 24% of the respondents have boycotted goods for ethical reasons.

(a)	In a sample of six British citizens, what is the probability that two have ever boycotted goods for ethical reasons?
	If required, round your answer to four decimal places.

f(2) =

(b)	In a sample of six British citizens, what is the probability that at least two respondents have boycotted goods for ethical reasons?
	If required, round your interim calculations and final answer to four decimal places.

P(at least 2) =

(c)	In a sample of eleven British citizens, what is the probability that none have boycotted goods for ethical reasons?
	If required, round your answer to four decimal places.