Compute the correlation coefficient.HX408182937 -10The correlation coefficient is r=26 8409.1 241 30Round the answer to three decimal places as needed.

Correlation is the statistical analysis method. It used to obtain the association between the two…

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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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Jalculate Karl Pearson's coefficient of correlation betkeen the following pairs of values. X : 100 Y : 110 115 116 120 125 130 135 18 18 17 16 16 15 13 10
Below is data for two variables, X and Y. Answer the questions that follow. X Y X-MX Y-MY (X-MX)2 (Y-MY)2 (X-MX)(Y-MY) 3 3 -2 -1 4 1 2 4 3 -1 -1 1 1 ___ 6 4 1 ___ 1 0 0 7 6 2 2 ___ 4 4 Positive or negative correlation?
Match the correlation coefficients with their scatterplots. Select the letter of the scatterplot below which corre- sponds to the correlation coefficient. (Click on image for a larger view.) ? 1. r= 0.76 ? 2. r=-0.74 ? 3. r= 0.22 ? 4. r= -0.97 A B C D
Compute the value of the multiple correlation (R). You should use a computer to find the solution. Y X1 X2 X3 27.6 1 4 4 9.4 3 5 3 15.6 4 7 1 20.3 5 5 4 12.3 3 7 3 8.7 5 3 6 7.3 7 5 7 14.9 6 4 8 17.0 5 3 9 -0.8 4 2 0
How does multiplying each score by a (positive) constant affect the value of the correlation? The correlation changes sign. The correlation does not change. The correlation decreases. The correlation increases.
Right arm 102 101 94 79 79 Left arm 175 169 182 146 144 If the sample data were to result in the scatterplot shown here, what is the value of the linear correlation coefficient r?
Here is a bivariate data set. x y 64 101 79 18 61 96 78 55 56 8 78 -7 60 26 76 7 99 55 Find the correlation coefficient and report it accurate to four decimal places. r = A good correlation calculator is found at Correlation Calculator
Use the value of the linear correlation coefficient r to find the coefficient of determination and the percentage of the total variation that can be explained by the linear relationship between the two variables. r= 0.279 What is the value of the coefficient of determination? 2= (Round to four decimal places as needed.) Enter your answer in the answer box and then click Check Answer. Check Answer Clear All part 1 remaining MacBook Pro F12 --- FIO F7 F8 F9 F5 esc F1 F2 & @ $ 6. 7 8 9 1 2 3 4 P Y Q tab K A S F + ||
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Compute the correlation coefficient. | X y 40 8 18 29 37 -10 The correlation coefficient is r= 26 8 40 9 1 24 1 30 Round the answer to three decimal places as needed.