Hi, Can you show me how to compute the correlation coefficient? The photo is attached. I have the formula, but I am unsure where I get the number x - x ( there a bar above the x on the second) 1. Compute the correlation coefficient.X 5442635 136yThe Correlation CoefficientSavery standard deviations Ex, and cut aGiven ordered(4,9), with simple means of ady,Sample size, the correlationbyis given1-1 Σn-154HSyWe often refer to as the correlation betweenrXand5133bEx = 20 2y = 1026x-xy.Step 1: Compute the sample means and standard deviations,x | Q |x-X (X-X)³ || y-y | (y-y)²a(44) 2Sx

Given: n = 5 Formula Used: Correlation coefficient r = n∑XY-∑X∑Yn∑X2-∑X2n∑Y2-∑Y2

1. Compute the correlation coefficient. X 5 4 2 6 3 36 4 1 4 5 1 The Correlation Coefficient Given ordered with Simple pairs (x,y), with Sample standard deviations Sx, and Sys Sample size, the correlation coefficient r by r= 1 XuJram P 2)( n-1 X-X Sx Σ We often refer to as the correlation between r and y. Step 1: Compute the sample b Ex=20 Ey=10 усту Sy means Fady, is given x|g|x-xx (x-x)² y-y | (y-y) ² у-у a 4 5 1 3 means and standard deviations

1. Compute the correlation coefficient. X 5 4 2 6 3 36 4 1 4 5 1 The Correlation Coefficient Given ordered with Simple pairs (x,y), with Sample standard deviations Sx, and Sys Sample size, the correlation coefficient r by r= 1 XuJram P 2)( n-1 X-X Sx Σ We often refer to as the correlation between r and y. Step 1: Compute the sample b Ex=20 Ey=10 усту Sy means Fady, is given x|g|x-xx (x-x)² y-y | (y-y) ² у-у a 4 5 1 3 means and standard deviations

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 random sample of college students was surveyed about how they spend their time each week. The scatterplot below displays the relationship between the number of hours each student typically works per week at a part- or full-time job and the number of hours of television each student typically watches per week. The correlation between these variables is r = –0.63, and the equation we would use to predict hours spent watching TV based on hours spent working is as follows: Predicted hours spent watching TV = 17.21 – 0.23(hours spent working) Since we are using hours spent working to help us predict hours spent watching TV, we’d call hours spent working a(n) __________________ variable and hours spent watching TV a(n) __________________ variable. The correlation coefficient, along with what we see in the scatterplot, tells us that the relationship between the variables has a direction that is _________________ and a strength that is ______________________. According to the…
The value of the correlation r = (x,y) for the information would be: n = 8, Sum(x) = 609, Sum(y) = 504, Sum (x)^2 = 47995, Sum (y)^2 = 32954, and Sum (xy) = 395650 Choose answer from the following: a. 0.855 b.0.174
A group of researchers measured how funny people rated a cartoon when they were in one of two groups: holding a pen in their teeth (forcing them to smile) or holding a pen in their lips (forcing them to frown). For this study, identify the independent variable and the dependent variable. Justify your response.
You have a theory: people who have a high income (X) are generally healthier (Y). You collect some data from local nursing homes and retirement homes and find no linear correlation between income and health. Of the 4 correlation mistakes we discussed in class, which one is the most likely here? Why? A supplements company conducted a study and found a strong positive relationship between use of its supplements and health. It advertised that it found a correlation coefficient of +1.25. What is wrong with this statement?
If Cov(X,Y)=-99, o? = 121 and o = 81 then, coefficient of correlation r(X, Y) will be %3D Select one: O +1.000 O - 1.000 O +0.0101 0.0101 PREVIOUS PAGE re to search 立
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Hello. I am having a hard time understanding and solving this problem. Can I ask for help how? Here is the problem. The director of an alumni association for a small college wants to determine whether there is any type of relationship between the amount of an alumnus’s contribution (in dollars) and the number of years the alumnus has been out of school. The data follow. Solve the correlation r and find the y’ when x = 4 years. I have also attached the image of the correlation data.
A biologist was recording various temperatures (in degrees Celsius) and predicting the amount of glucose produced by a plant (in milligrams). Suppose the linear equation was the following: ?̂ = 12.7 − 0.223? d) Suppose the correlation coefficient was −0.12. How would you classify the correlation between temperature and amount of glucose?