Do you think global warming will have an impact on you during your lifetime? A CBS News/New York Timespoll ofadults in the United States asked this question (CBS News website, December,). Consider the responses by age groups shown below.

a.What is the probability that a respondent-years of age thinks that global warming will not pose a serious threat during his/her lifetime (todecimals)?

b.What is the probability that a respondent+ years of age thinks that global warming will not pose a serious threat during his/her lifetime (todecimals)?

c.For a randomly selected respondent, what is the probability that a respondent answers yes (todecimals)?

d.Based on the survey results, does there appear to be a difference between ages-and+ regarding concern over global warming?

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