Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. Then calculate it again, letting Row 2 represent the x-values and Row 1 the y-values. What effect does switching the variables have on r?Row 119233149517079Row 2156155190141202191181Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values.r= 0.430 (Round to three decimal places as needed.)Calculate the correlation coefficient r, letting Row 2 represent the x-values and Row 1 the y-values.(Round to three decimal places as needed.)

Given: Row 1 Row 2 19 156 23 155 31 190 49 141 51 202 70 191 79 181

Answered: Calculate the correlation coefficient…

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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Which value of r indicates a stronger correlation: r=0.844 or r= -0.867? Explain your reasoning. Choose the correct answer below. O A. r= -0.867 represents a stronger correlation because | -0.867| > |0.844. B. r=0.844 represents a stronger correlation because 0.844> -0.867. OC. r=0.844 represents a stronger correlation because | -0.867| > |0.844|. D. r= -0.867 represents a stronger correlation because 0.844 > -0.867.
Will the following variables have positive correlation, negative correlation, or no correlation? IQ and annual salary Will these variables have positive correlation, negative correlation, or no correlation? O No correlation O Negative Positive Click to select your answer. acer esc @ 2$ % 8 W e r tab Dロ d f 9h a しのづ త #3 の

Use the data from the given table of values to determine the correlation. In the answer space provided, give the r-value rounded to the hundredth. X Y 2 77 5 92 1 70 0 63 4 90 2 75 3 84
Calculate the correlation coefficient by hand for the relationship of ordinal variables X and Y in DATA SET A. Make sure you show all of your work and demonstrate the use of the formula. Then, evaluate the correlation coefficient you calculated using the online p-value calculator we learned about in class. DATA SET A X Y 1 3 2 1 3 2 4 5 5 6 6 7 7 4
please solve A, B, and D ch 12
Circle answer
Number 2 for the last 3 questions
The correlation between midterm and final grades for 300 students is 0.620. If 5 points are added to each midterm grade, the new r will be: a. 0.124 b. 0.57 c. 0.62 d. 0.744
Please explain
Distinguish the correlation shown in the graph below. Summarize why it is the chosen correlation. 30 Use the paperclip button below to attach files. Student can enter max 3000 characters 1- XD 2= DELL to B I U 25 de 2
Give an example of two variables that you would expect to have a correlation close to or equal to -1. Give an example of two variables that you would expect to have a correlation close to or equal to 0. Remember that survey question you wrote? Take the class responses to your survey as data related to the one variable of your question. Now, take the list of responses from the survey question that one of your classmates wrote. Write down both lists of data. (If one sample size happens to be different from the other, cut the larger sample size down to that of the smaller sample size.) Calculate the correlation between the two variables. Describe the linear relationship between these two variables. (data for number 3) How many cars have you had so far in your lifetime? 0,1,1,1,2,2,2,2,3,3,3,3,4,4,5,6,6,7,10. How many days per week do you exercise? 0,0,0,1,2,3,3,3,3,4,4,4,4,5,5,5,5,6,6,6
Solve.

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