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The contingency table below shows the results of a survey of video viewing habits by age....

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 39 24 63 35–54 14 14 28 55+ 2 7 9 Column Total 55 45 100 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 aged 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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Answer #1

a) The probability that a viewer is aged 18–34

b) The probability that a viewer prefers watching videos on a TV screen =

c) Percentage of viewers who are 18–34 and prefer videos on a mobile or laptop device

d) Percentage of viewers aged 18–34 who prefer videos on a mobile or laptop device

e)  Percentage of viewers who are 35–54 or prefer videos on a mobile or laptop device

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