An Instructor Finds That, in General, the More Other Instructors

question 13

Multiple Choice

An instructor finds that, in general, the more other instructors use Powerpoint presentations and web sites, the less often students attend class. Which of the following correlations reflects this relationship?

• A) r = .50
• B) r = -.50
• C) r = 1.00
• D) r = -1.00

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Definitions:

\(n !\)

\(n !\), pronounced n factorial, is the product of all positive integers less than or equal to n. For instance, \(4! = 4 \times 3 \times 2 \times 1 = 24\).

\(9 n + 1\)

An algebraic expression representing a linear function in terms of n.

\(3 ^ { n - 1 }\)

This represents an exponential expression where a base of 3 is raised to the power of \(n - 1\), with \(n\) being any real number.