Question: 2 points Return to questionItem 8 The contingency table below shows the results of a survey of video viewing habits by age. Video Viewing Platform
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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 33 25 58
35-54 13 13 26
55+ 5 11 16
Column Total 51 49 100
Find the following probabilities or percentages:
(a) Probability that a viewer is aged 18-34. (Round your answer to 2 decimal places.)
Probability.58 Numeric ResponseEdit Unavailable. .58 correct.
(b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 decimal places.)
Probability Numeric ResponseEdit Unavailable. .49 correct.
(c) Percentage of viewers who are 18-34 and prefer videos on a mobile or laptop device.
Percentage of viewersNumeric ResponseEdit Unavailable. 33 correct.%
(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 viewersNumeric ResponseEdit Unavailable. 56 incorrect.%
(e) Percentage of viewers who are 35-54 or prefer videos on a mobile or laptop device.
Percentage of viewersNumeric ResponseEdit Unavailable. 64 correct.%
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