Which of the following is true of relationships between variables?

Question

Quizplus · Accepted Answer

A linear relationship is simpler to work with because it has a constant rate of change and can be easily represented by a straight line on a graph. In contrast, a curvilinear relationship has a changing rate of change and cannot be easily represented by a straight line.

Answer: C
 A negative relationship exists between two variables when low levels of one variable are associated with high levels of another. A positive relationship, on the other hand, exists when high levels of one variable are associated with high levels of another.

Answer: E
 In a linear relationship between two variables, the strength and direction of the relationship remains constant over the range of both variables, with a constant rate of change represented by a straight line on a graph. If the strength or direction of the relationship changes over the range of the variables, it is not a linear relationship. The larger the size of the correlation coefficient between two variables, the stronger the association between them.

Which of the Following Is True of Relationships Between Variables