Exhibit 14-6

question 63

Multiple Choice

Exhibit 14-6.A manager at a local bank analyzed the relationship between monthly salary (y,in $) and length of service (x,measured in months) for 30 employees.She estimates .The following table summarizes a portion of the regression results: Refer to Exhibit 14-6.The coefficient of determination indicates that

• A)18.39% of the variation in Salary is explained by the variation in Service.
• B)18.39% of the variation in Service is explained by the variation in Salary.
• C)81.61% of the variation in Salary is explained by the variation in Service.
• D)81.61% of the variation in Service is explained by the variation in Salary.

---

Definitions:

Scramble Competition

See Exploitation Competition.

Intraspecific

Pertaining to interactions or relationships occurring within the same species, such as competition or mating.

Negative Feedback

A regulatory mechanism in which a stimulus causes an opposite output in order to maintain an optimal level of whatever is being regulated.

Density Dependent

Factors whose effects on the size or growth of the population vary with the population density.