(a)r=-0,8 is Picture(b) r=0 is Picture(c)r 0.5 is Picture(d)r=1 is Picture(0)

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Description: (a)r=-0,8 is Picture(b) r=0 is Picture(c)r 0.5 is Picture(d)r=1 is Picture(0)

Answered: (a) r=-0,8 is Picture (b) r=0 is…

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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(a)
r=-0,8 is Picture
(b) r=0 is Picture
(c)
r 0.5 is Picture
(d)
r=1 is Picture
(0)

Expert Solution

Step 1

(a) $r = - 0.8$

The Pearson correlation coefficient $r = - 0.8$ is picture 4.

Since the scatter diagram in picture 4 shows that there is moderately negative linear pattern or relationship between explanatory and response variable, $r = - 0.8$ must be the correct correlation coefficient value.

(b) $r = 0$

The Pearson correlation coefficient $r = 0$ is picture 3.

Since the scatter diagram in picture 3 shows that there is no linear pattern or relationship between explanatory and response variable, $r = 0$ must be the correct correlation coefficient value.

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