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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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
Transcribed Image Text:QUESTION 20
Here's a copy of the exact same graph we were just looking at:
Thirty-year trend in springtime appearance of squirrels and oak acorns
115
Squirrel Oak acom
110
105
...
y=0.1315x+ 363.57
R = 0.24144
100
95
y0.564x + 1233.4
R= 0.85739
90
1985
1990
1995
2000
2005
2010
2015
2020
Year
When visually inspecting the data points for squirrels and oak, they seem to be equally scattered around their trendlines. Look at the quantitative information in the graph -- which answer is correct below?
O Indeed, the data sets are equally variable based on the quantitative data
O There is more variation in the oak data, due to the R-square value being lower
O There is more variation in the oak data, due to the slope being less negative
O There is more variation in the squirrel data, due to the R-square value being higher
O There is more variation in the squirrel data, due to the slope being more negative
Days After January 1
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