If the coefficient of correlation between x and y is close to 1, this indicates that:OA. y causes x to happenOB. there may or may not be any causal relationship between x and yOC. x causes y to happenOD. both A and B are correct answersIf the coefficient of correlation is -0.60, then the coefficient of determination is:OA. -0.60OB. 0.40OC. -0.36OD. 0.36

Q-1) CORRELATION COEFFICIENT (r) = 1 this indicates what about causation? Q-2)r = -0.60…

Answered: If the coefficient of correlation…

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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Match each scatterplot shown below with ane of the four specified correlations. a. 0.91 b. -0.97 C. -0.09 ++++++ d. 0.24 20 Check X పొరాం
If the Pearson correlation is measured between two variables X and Y and was - 0.56. This indicates that: Select one: a. X and Y medium correlation, and if X increases, Y will increase generally b. X and Y strong correlation, and if X increases, Y will increase generally c. X and Y strong correlation, and if X increases, Y will decrease generally d. X and Y medium correlation, and if X increases, Y will decrease generally
If the correlation between variables A and B is +1.35… A. The relationship is negative. B. The relationship is positive. C. The relationship is positive and very strong. D. We have miscalculated.
Match each scatterplot shown below with one of the four specified correlations. of 0 80 Bror opo 8. 808 0 a. -0.54 D. 0.66 c. -0.79 d. -0.01
A scatterplot is made of the average height (x axis) and average blood temperature (y axis) of 200 different mammals. The correlation is medially positive, approximately around r = 0.6. Human is at the 2 SD below the average on height and approximately 1.2 SD below the average on blood temperature. This implies this point is... Group of answer choices No answer text provided. on the SD line it is impossible to say with the information given on the regression line
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
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
Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. (b) Would you say the correlation is low, moderate, or strong? positive or negative? a) moderate and positiveb) low and negative c) strong and positived) strong and negativee) low and positivef) moderate and negative As x increases, does the value of r imply that y should tend to increase or decrease? Explain. a) Given our value of r, y should tend to decrease as x increases.b) Given our value of r, y should tend to remain constant as x increases. c) Given our value of r, y should tend to increase as x increases.d) Given our value of r, we cannot draw any conclusions for the behavior of y as x increases.
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When the values of x tend to increase while the values of y tend to decrease; we say that: Answer choices: a. there is a cause-and-effect relationship between the two variables. b. there is a negative correlation between the variables. c. there is no correlation between the two variables.

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