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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

Age range Mobile/Laptop Device Tv Screen Row Total

18-34    33    25    58

35-54    13    13    26

55+    5    11    16

Column Total 51 49 100

(a) Probability that a viewer is aged 18-34

(b) 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 given they are 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

Math   Statistics-And-Probability   
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