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 40 23 63 35–54 12 12 24 55+ 5 8 8 13 Column Total 57 43 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 videos on a mobile or laptop device. Percentage of viewers %
The
| Video Viewing Platform Preferred | |||||||||||
| Viewer Age | Mobile/Laptop Device | TV Screen | Row Total | ||||||||
| 18–34 | 40 | 23 | 63 | ||||||||
| 35–54 | 12 | 12 | 24 | ||||||||
| 55+ | 5 | 8 | 8 | 13 | |||||||
| Column Total | 57 | 43 | 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 videos 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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