A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults, asked those adults about their party affiliation (Democrat, Republican or none) and their opinion of how the US economy was changing ("getting better," "getting worse" or "about the same"). The results are shown in the table below.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.7: Distinguishable Permutations And Combinations
Problem 29E
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A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults, asked
those adults about their party affiliation (Democrat, Republican or none) and their opinion of how the US
economy was changing ("getting better," "getting worse" or "about the same"). The results are shown in the
table below.
better
same
worse
Republican
38
104
44
Democrat
12
87
137
none
21
90
118
Express each of your answers as a percent rounded to the nearest tenth (for example, 12.3%).
a. What percent of survey respondents identified themselves as affiliated with neither party (marginal
probability)?
b. What percent of survey respondents thought the economy was getting better and were affiliated with
neither party (joint probability)?
c. What percent of those affiliated with neither party thought the economy was getting better (conditional
probability)?
Transcribed Image Text:A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults, asked those adults about their party affiliation (Democrat, Republican or none) and their opinion of how the US economy was changing ("getting better," "getting worse" or "about the same"). The results are shown in the table below. better same worse Republican 38 104 44 Democrat 12 87 137 none 21 90 118 Express each of your answers as a percent rounded to the nearest tenth (for example, 12.3%). a. What percent of survey respondents identified themselves as affiliated with neither party (marginal probability)? b. What percent of survey respondents thought the economy was getting better and were affiliated with neither party (joint probability)? c. What percent of those affiliated with neither party thought the economy was getting better (conditional probability)?
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