If an Activity's Cost Is Plotted Against Its Duration on Axes

question 30

Multiple Choice

If an activity's cost is plotted against its duration on axes with zeros at the origin:

• A)the slope of the line is positive because it costs more to finish an activity more quickly.
• B)the slope of the line is negative because a shorter activity costs less than a longer one.
• C)the slope of the line is negative because it costs more to finish an activity more quickly.
• D)the slope of the line is positive because a longer activity costs more than a shorter one.

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Definitions:

Independent Variable

In research, the variable that is manipulated or changed to observe its effect on a dependent variable.

Dependent Variable

In an experiment or study, the variable that is being tested and measured, often to see the impact of variations in the independent variable.

Randomization

In an experiment involves assigning each individual by chance processes.

Control Group

In experimental research, a group of subjects that does not receive the treatment being tested, used for comparison against the group that does.