Determine which of the following statement(s) regarding the correlation coefficient (Pearson) is (are) true.A. The correlation coefficient is a measure of any type of association.B. -1

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Answered: Determine which of the following…

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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The following statement contains an error. Choose the statement that best explains the error. "The correlation between shoe size and height is 0.87 inches" A. Correlation requires that both of the variables be categorical B. When stating the correlation coefficient, one must state whether it is a positive or negative relationship C. This statement does not tell us whether or not shoe size is correlated with height D. When reporting correlation, one does not report units because correlation has no units E. There is no error in this statement
Which of the following sets of correlations shows the highest to lowest degree of relationship? A. +.70, +.15, -.10, -.85 B. -.85, +.70, -.10, +.15 C. +.70, +.15, -.85, -.10 D. -.85, +.70, +.15, -.10 E. -.10, +.15, +.70, -.85
For each of the following, indicate whether a correlation is most likely POSITIVE, NEGATIVE or NC (no correlation possible). The number of calories consumed and a person's weight loss The age of a child and the kind of pets owned Number of hours spent partying and GPA The age of a car and its mileage Weekly ice cream sales and weekly average temperature
Which of the following correlation coefficients might lead a researcher to conclude that there is a weak, but significant, negative linear relation between variables X and Y? a. r=0.99 b. r=0.30 c. r=0 d. r=-0.30 c. r=-0.99
The asking prices (in Rands) and the actual selling prices (in Rands), after bargaining, of 8 commodities are given below. Commodity A D E F G H Asking price, x 150 350 400 750 100 650 600 250 Selling price, y 120 200 400 550 80 450 350 200 Find the correlation coefficient for the above data. A. 0.8224 B. 0.3722 С. 0.9438 D. 0.5318 Activate
Bt.20.
4.
31
2.) The table shown below are the raw scores obtained by eight (8) students. Is there a relationship in their scores in Mathematics and in Biology? Use Pearson Product-Moment Coefficient of Correlation to establish the relationship. Student 1 3 4 6. 8. Mathematics (x) 6. 3. 4 3 Biology (y) 8. 3. 7 4
What is the correlation coefficient for the data? (Round to three decimal places as needed.) Which of the following best describes the association between fat and calories?O A. There is a strong curved association.O B. There is a strong negative linear association.O C. There is a strong positive linear association.O D. There is a weak positive linear association.O E. There is a weak negative linear association.O F. There is no apparent association between fat and calories
28. Calculate the Karl Pearsons coefficient of correlation between expendture and sales. 90 86 82 75 Expenditure (Rs. lakh) : Sales (Rs. crore) 39 47 65 62 25 98 36 78 84 53 58 62 鍋 91 51

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Determine which of the following statement(s) regarding the correlation coefficient (Pearson) is (are) true. A. The correlation coefficient is a measure of any type of association. B. -1