Do you think global warming will have an impact on you during your lifetime? A poll of 1,000 adults asked this question. Consider the responses by age groups shown below.ResponseAge18–2930+Yes140287No137426Unsure82 (a) What is the probability that a respondent 18–29 years of age thinks that global warming will not pose a serious threat during his/her lifetime? (Round your answer to four decimal places.) (b) What is the probability that a respondent 30+ years of age thinks that global warming will not pose a serious threat during his/her lifetime? (Round your answer to four decimal places.) (c) For a randomly selected respondent, what is the probability that a respondent answers yes? (d) Based on the survey results, does there appear to be a difference between ages 18–29 and 30+ regarding concern over global warming? 1. It appears that older respondents and younger respondents are mostly unsure about global warming being a threat in their lifetime.2. It appears that older respondents and younger respondents are equally concerned about global warming being a threat in their lifetime. 3. It appears that older respondents are more concerned about global warming being a threat in their lifetime than are younger respondents.4. It appears that older respondents are less concerned about global warming being a threat in their lifetime than are younger respondents.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Do you think global warming will have an impact on you during your lifetime? A poll of 1,000 adults asked this question. Consider the responses by age groups shown below.

Response	Age
18–29	30+
Yes	140	287
No	137	426
Unsure	8	2

(a) What is the probability that a respondent 18–29 years of age thinks that global warming will not pose a serious threat during his/her lifetime? (Round your answer to four decimal places.)

(b) What is the probability that a respondent 30+ years of age thinks that global warming will not pose a serious threat during his/her lifetime? (Round your answer to four decimal places.)

(d) Based on the survey results, does there appear to be a difference between ages 18–29 and 30+ regarding concern over global warming?

1. It appears that older respondents and younger respondents are mostly unsure about global warming being a threat in their lifetime.

2. It appears that older respondents and younger respondents are equally concerned about global warming being a threat in their lifetime.

3. It appears that older respondents are more concerned about global warming being a threat in their lifetime than are younger respondents.

4. It appears that older respondents are less concerned about global warming being a threat in their lifetime than are younger respondents.

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