46% 29% Headaches 37% 32% Allergies 38% 33% Cold
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:In addition to being asked about the quality of their sleep the night before the interview, survey
respondents were asked if they felt ill with headaches, felt ill with allergies, or felt ill with a cold the
day before the interview. Gallup provided the following graph based on the responses.
Did you experience the following feelings during a lot of the day yesterday?
Percent reporting "fair" or "poor" sleep night before
● Yes, experienced illness the day prior No, did not experience illness the day prior
46%
I
29%
Headaches
37%
32%
Allergies
This graph represents
O The conditional distribution of illness experience, given sleep quality
O The joint distribution of sleep quality and mental health state
O The marginal distribution of illness experience
O The conditional distribution of sleep quality, given illness experience
O The marginal distribution of sleep quality
38%
33%
Cold
Which is a correct interpretation based on this graph?
O Respondents who experienced headaches during the day were substantially more likely to
report fair or poor sleep at night than respondents who did not experience headaches (46% vs
29%).
O Respondents who reported fair or poor sleep at night were substantially more likely to have
experienced headaches during the day than respondents who did not report fair or poor sleep
(46% vs 29%).
O Respondents who reported fair or poor sleep at night were substantially more likely to have
experienced headaches than to not have experienced headaches during the day (46% vs 29%).
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