The contingency table below shows the results of a survey of video viewing habits by age.   Viewer Age Video Viewing Platform Preferred Row Total Mobile/Laptop Device TV Screen 18 to 34 35 38 73 35 to 54 9 9 18 55+ 3 6 9 Column Total 47 53 100   Find the following probabilities or percentages:   (a) Probability that a viewer is aged 18 to 34. (Round your answer to 2 decimal places.)       (b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 decimal places.)       (c) Percentage of viewers who are 18 to 34 and prefer videos on a mobile or laptop device.

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