The correlation coefficient may assume any value between?
a) |
0 and 1 |
|
b) |
- ∞ and ∞ |
|
c) |
0 and 8 |
|
d) |
-1 and 1 |
The correlation coefficient may assume any value between? a) 0 and 1 b) - ∞ and...
Assume that the correlation coefficient ρA,B between the rates of return of stocks A and B is negative. Also assume that you combine the two assets to form portfolio P. All else equal, the higher the absolute value of ρA,B, a. sometimes the risk of P will be higher and sometimes lower b. the lower the risk of P c. the higher the risk of P d. cannot tell
The correlation coefficient: A, Is a number with a range from -1 to 1 B. If there is no correlation, the coefficient is negative C. If the correlation coefficient is negative, it indicates a strong positive relationship between x and y D. All of the above
1) For each of the six scatterplots, estimate the value of the correlation coefficient. rri 43 Nytt (0) (b) (c) (d) Solution:
find the coefficient of determination, given that the value of the
linear correlation coefficient, r, is -0.451
D Question 8 1 pts Find the coefficient of determination, given that the value of the linear correlation coefficient, r, is -0.451. O 0.451 O 0.797 O 0.549 O 0.203
The correlation coefficient between a selection test and job performance is 0. This means the selection test ________. A) perfectly predicts job performance B) and job performance are unrelated C) has adverse impact on job performance D) is positively related to job performance
The correlation coefficient, r, is a number between 0 and 10 -10 and 10 0 and 100 -oo and oo O and oo -1 and 1 0 and 1
If the correlation between variables x and y is r = .50, then the coefficient of determination is a. .50. b. 0. c. 1.00. d. .25.
1) The correlation coefficient determined for two variables has a value of 0.89. Describe, in words, the correlation between the two variables. 2) The correlation coefficient determined for two variables has a value of 0.13. Describe, in words, the correlation between the two variables. 3) The correlation coefficient determined for two variables has a value of -0.93. Describe, in words, the correlation between the two variables.
1. The correlation coefficient determined for two variables has a value of 0.89. Describe, in words, the correlation between the two variables. 2. The correlation coefficient determined for two variables has a value of 0.13. Describe, in words, the correlation between the two variables. 3. The correlation coefficient determined for two variables has a value of -0.93. Describe, in words, the correlation between the two variables.
Determine if the following statement is true or false. A correlation coefficient close to 1 is evidence of a cause-and-effect relationship between the two variables. The statement is true O A. False. Only a correlation coefficient close to 0 indicates a cause-and-effect relationship between the two variables O B. False. A correlation coefficient should not be interpreted as a cause-and-effect relationship O c. True, but only if all the conditions for correlation are met. False. A correla.on coefficient of 1...