Quiz 11: Appendix A: Describing Associations With Correlation Coefficients
Q 1Q 1
Complete the following sentence with the correct answer. A correlation coefficient: A)Can range from -1 to +1. B)Can range from -2 to +2. C)Can range from -100 to +100. D)Can be any real (non-imaginary)number.
Q 2Q 2
When a correlation coefficient is a negative number,it must be concluded that: A)The variables will have a negative effect on students. B)As the one variable increases,the other variable decreases. C)The variables are weakly correlated. D)An error was made in computing the number
Q 3Q 3
Which of the following questions cannot be addressed through the use of a correlation coefficient? A)Do taller students tend to like science more than shorter students? B)Do students who read more books tend to be less interested in reading? C)Do students who like math tend to get better grades? D)Do students in Ms. Martin's class tend to score higher than students in Ms. Tucker's class the standardized math tests?