The contingency table below shows the results of a survey of video viewing habits by age. Video Viewing Platform Preferred Mobile/Laptop Viewer Age Device TV Screen Row Total 18 to 34 36 31 67 35 to 54 10 10 20 55+ 4 9 13 Column Total 50 50 100 Find the following probabilities or percentages: (a) Probability that a viewer is aged 18 to 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 to 34 and prefer videos on a mobile or laptop device. _a [d] Percentage of viewers given they are 18 to 34 who prefer videos on a mobile or laptop device. [Round your answer to 2 decimal places} _a [a] Percentage of viewers who are 35 to 54 or prefer videos on a mobile or laptop device. a