The contingency table below shows the results of a survey of video viewing habits by age. Video Viewing Platform Preferred Viewer Age Mobile/Laptop Device TV Screen Row Tota1 64 18-34 31 33 35-54 9. 18 55+ 12 18 Column Total 46 54 100 Find the following probabilities or percentages: (a) Probability that a viewer is aged 18-34. (Round your answer to 2 decimal places.) Probability (b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 decimal places.) Probability (c) Percentage of viewers who 18-34 and prefer videds on a mobile or laptop device. Percentage of viewers |% (d) Percentage of viewers given they are 18-34 who prefer videos on a mobile or laptop device. (Round your answer to 2 dec places.) Percentage of viewers |% (e) Percentage of viewers who are 35-54 or prefer videos on a mobile or laptop device.

A First Course in Probability (10th Edition)
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Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Question
The contingency table below shows the results of a survey of video viewing habits by age.
Video Viewing Platform Preferred
Viewer Age
Mobile/Laptop Device
TV Screen
Row Total
18-34
31
33
64
35-54
9.
9.
18
55+
6.
12
18
Column Total
46
54
100
Find the following probabilities or percentages:
(a) Probability that a viewer is aged 18–34. (Round your answer to 2 decimal places.)
Probability
(b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 decimal places.)
Probability
(c) Percentage of viewers who are 18–34 and prefer videds on a mobile or laptop device.
Percentage of viewers
(d) Percentage of viewers given they are 18–34 who prefer videos on a mobile or laptop device. (Round your answer to 2 decimal
places.)
Percentage of viewers
(e) Percentage of viewers who are 35-54 or prefer videos on a mobile or laptop device.
Percentage of viewers
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Transcribed Image Text:The contingency table below shows the results of a survey of video viewing habits by age. Video Viewing Platform Preferred Viewer Age Mobile/Laptop Device TV Screen Row Total 18-34 31 33 64 35-54 9. 9. 18 55+ 6. 12 18 Column Total 46 54 100 Find the following probabilities or percentages: (a) Probability that a viewer is aged 18–34. (Round your answer to 2 decimal places.) Probability (b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 decimal places.) Probability (c) Percentage of viewers who are 18–34 and prefer videds on a mobile or laptop device. Percentage of viewers (d) Percentage of viewers given they are 18–34 who prefer videos on a mobile or laptop device. (Round your answer to 2 decimal places.) Percentage of viewers (e) Percentage of viewers who are 35-54 or prefer videos on a mobile or laptop device. Percentage of viewers < Prev 14 of 19 Next >
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