2.17 Global warming: A research poll asked 1693 Americans "From what you've read and heard, is there solid evidence that the average temperature on earth has been getting warmer over the past few decades, or not?". The table below shows the distribution of responses by party and ideology, where the counts have been replaced with relative frequencies. Earth is warming Not warming Don't know (or refuse) Total Conservative Republican Mod/Lib Republican 0.11 0.15 0.03 0.29 0.07 0.03 0.04 0.14 Mod/Cons Democrat 0.14 0.03 0.05 0.22 Liberal Democrat 0.26 0.01 0.08 0.35 Total 0.58 0.22 0.2 1 a) Are believing that the earth is warming and being a liberal Democrat mutually exclusive? O mutually exclusive not mutually exclusive b) What is the probability that a randomly chosen respondent believes the earth is warming or is a liberal x (please round to four decimal places) c) What is the probability that a randomly chosen respondent believes the earth is warming given that they Democrat? 0.93 are a liberal Democrat? 0.26 X (please round to four decimal places) d) What is the probability that a randomly chosen respondent believes the earth is warming given that they are a conservative Republican? 0.11 X (please round to four decimal places) e) Does it appear that whether or not a respondent believes the earth is warming is independent of their party ideology?
2.17 Global warming: A research poll asked 1693 Americans "From what you've read and heard, is there solid evidence that the average temperature on earth has been getting warmer over the past few decades, or not?". The table below shows the distribution of responses by party and ideology, where the counts have been replaced with relative frequencies. Earth is warming Not warming Don't know (or refuse) Total Conservative Republican Mod/Lib Republican 0.11 0.15 0.03 0.29 0.07 0.03 0.04 0.14 Mod/Cons Democrat 0.14 0.03 0.05 0.22 Liberal Democrat 0.26 0.01 0.08 0.35 Total 0.58 0.22 0.2 1 a) Are believing that the earth is warming and being a liberal Democrat mutually exclusive? O mutually exclusive not mutually exclusive b) What is the probability that a randomly chosen respondent believes the earth is warming or is a liberal x (please round to four decimal places) c) What is the probability that a randomly chosen respondent believes the earth is warming given that they Democrat? 0.93 are a liberal Democrat? 0.26 X (please round to four decimal places) d) What is the probability that a randomly chosen respondent believes the earth is warming given that they are a conservative Republican? 0.11 X (please round to four decimal places) e) Does it appear that whether or not a respondent believes the earth is warming is independent of their party ideology?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:2.17 Global warming: A research poll asked 1693 Americans "From what you've read and heard, is there
solid evidence that the average temperature on earth has been getting warmer over the past few decades,
or not?". The table below shows the distribution of responses by party and ideology, where the counts have
been replaced with relative frequencies.
Earth is warming
Not warming
Don't know (or refuse)
Total
Conservative Republican
Mod/Lib Republican
0.11
0.15
0.03
0.29
0.07
0.03
0.04
0.14
Mod/Cons Democrat
0.14
0.03
0.05
0.22
Liberal Democrat
0.26
0.01
0.08
0.35
Total
0.58
0.22
0.2
1
a) Are believing that the earth is warming and being a liberal Democrat mutually exclusive?
O mutually exclusive
not mutually exclusive
b) What is the probability that a randomly chosen respondent believes the earth is warming or is a liberal
Democrat? 0.93
X (please round to four decimal places)
c) What is the probability that a randomly chosen respondent believes the earth is warming given that they
are a liberal Democrat? 0.26
x (please round to four decimal places)
d) What is the probability that a randomly chosen respondent believes the earth is warming given that they
are a conservative Republican? 0.11
X (please round to four decimal places)
e) Does it appear that whether or not a respondent believes the earth is warming is independent of their
party ideology?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman