5.85 Wildlife Refuge There is significant opposi- tion among Canadians toward U.S. plans to approve drilling in the Arctic Wildlife Refuge, according to a survey commissioned by World Wildlife Fund Canada, carried out by Ekos Research Associates.17 The survey results are based on a telephone survey using a random sample of 1020 Canadians, 18 years and older. Survey- ing took place between July 6 and 12, 2005. When asked how strongly they support or oppose U.S. plans to approve drilling in the Alaska Wildlife Refuge, 90% of Canadians voice opposition (either oppose or strongly oppose). Suppose a group of 12 Canadians, 18 years and older, is randomly selected and asked whether they opposed (or strongly opposed) U.S. drilling in the Arctic.

a. What is the probability that more than six of the respondents will oppose the drilling?

b. What is the probability that fewer than five of the respondents will oppose the drilling?

c. What is the probability that exactly ten of the respondents will oppose the drilling?