(a) Probability that a viewer is aged 18 to 34. (Round your answer to 2 decimal places.) Probability 0.67 (b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to =

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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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
31
36
67
35 to 54
16
55+
6.
11
17
Column Total
45
55
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
0.67
(b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2
Probability
0.55
Transcribed Image Text: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 31 36 67 35 to 54 16 55+ 6. 11 17 Column Total 45 55 100 Find the following probabilities or percentages: (a) Probability that a viewer is aged 18 to 34. (Round your answer to 2 decimal places.) Probability 0.67 (b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 Probability 0.55
(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.)
Percentage of viewers
0.46 %
(e) Percentage of viewers who are 35 to 54 or prefer videos on a mobile or laptop device.
Percentage of viewers
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Transcribed Image Text:(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.) Percentage of viewers 0.46 % (e) Percentage of viewers who are 35 to 54 or prefer videos on a mobile or laptop device. Percentage of viewers < Prev Next > Mc Graw Hill 14 of 19 Type here to search 19 144
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