What are the units of the correlation coefficient for these data?
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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Transcribed Image Text:Tail-feather length in birds is sometimes a sexually dimorphic trait. That is, the trait differs substantially for males and for
females. Researchers studied the relationship between weight, x, and tail-feather length, y, in a sample of five wild male
long-tailed finches. The data are given:
weight (g)
20.8
19.1
15.9
16.7
15.7
tail length (mm)
82.5
82.5
67.0
70.5
73.5
What are the units of the correlation coefficient for these data?
Correlation is a unitless quantity.
g/mm units
mm units
mm/g units
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Tail-feather length in birds is sometimes a sexually dimorphic trait. That is, the trait differs substantially for males and for females. Researchers studied the relationship between weight, x, and tail-feather length, y, in a sample of five wild male long-tailed finches.
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