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 36 26 62 35 to 54 12 12 24 55+ 4 10 14 Column Total 52 48 100 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. (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.) (e) Percentage of viewers who are 35 to 54 or prefer videos on a mobile or laptop device.
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 36 26 62 35 to 54 12 12 24 55+ 4 10 14 Column Total 52 48 100 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. (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.) (e) Percentage of viewers who are 35 to 54 or prefer videos on a mobile or laptop device.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The
Viewer Age | Video Viewing Platform Preferred | Row Total | |
---|---|---|---|
Mobile/Laptop Device | TV Screen | ||
18 to 34 | 36 | 26 | 62 |
35 to 54 | 12 | 12 | 24 |
55+ | 4 | 10 | 14 |
Column Total | 52 | 48 | 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.
(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.)
(e) Percentage of viewers who are 35 to 54 or prefer videos on a mobile or laptop device.
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