MATLAB: An Introduction with Applications
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Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:Correlation by eye
Sample size=65
y
15-
10-
5.
0.
10
20
Try to guess the sample correlation within +/- 0.1
Guess:
Correlation:
Sample coeficient of correlation a
00
00
Transcribed Image Text:b)
Correlation by eye
Sample size=100
y
20
15
10-
00
5.
0-
10
15
X
Try to guess the sample correlation within +/- 0.1
Guess:
Correlation:
Sample coeficient of correlation a
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- Assume that you have paired values consisting of heights (in inches) and weights (in lb) from 40 randomly selected men. The linear correlation coefficient r is 0.567. Find the value of the coefficient of determination. What practical information does the coefficient of determination provide? Question content area bottom Part 1 Choose the correct answer below. A. The coefficient of determination is 0.321. 32.1% of the variation is explained by the linear correlation, and 67.9% is explained by other factors. B. The coefficient of determination is 0.679. 67.9% of the variation is explained by the linear correlation, and 32.1% is explained by other factors. C. The coefficient of determination is 0.321. 67.9% of the variation is explained by the linear correlation, and 32.1% is explained by other factors. D. The coefficient of determination is 0.679. 32.1% of the variation is explained by the linear correlation, and 67.9% is…arrow_forwardMatch each correlation to the correspoding scatterplot please.arrow_forwardA hospital administrator wants a statistic to calculate the relationship between the degree of patient satisfaction and whether that patient was treated in the ER or admitted to the hospital. one-sample t point-biserial correlation O independent-measures t sign testarrow_forward
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