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(1) Do life expectancy and income appear to be associated or independent? (2) Has the relationship between these variables been the same through the years, or has it changed?

(1) Do life expectancy and income appear to be associated or independent? (2) Has the relationship between these variables been the same through the years, or has it changed?

MATLAB: An Introduction with Applications
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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(1) Do life expectancy and income appear to be associated or independent? (2) Has the relationship between these variables been the same through the years, or has it changed?
Transcribed Image Text:(1) Do life expectancy and income appear to be associated or independent? (2) Has the relationship between these variables been the same through the years, or has it changed?
ife expectancy r years Scatterplots are useful for visualizing the relationship between two numerical variables. The scatterplot below is from gapminder.orge INCOME LEVEL 1 • LEVEL 2 • LEVEL 3 • LEVEL 4 90 80 70 020 60 50 40
Transcribed Image Text:ife expectancy r years Scatterplots are useful for visualizing the relationship between two numerical variables. The scatterplot below is from gapminder.orge INCOME LEVEL 1 • LEVEL 2 • LEVEL 3 • LEVEL 4 90 80 70 020 60 50 40
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