Cell Phone Data Plans Are Most Useful When Used with a Smartphone

question 187

Multiple Choice

Cell phone data plans are most useful when used with a smartphone, and smartphones are most useful when used with a data plan. As the price of data plans falls, the demand for smartphones will:

• A) decrease, because smartphones and data plans are substitutes.
• B) increase, because smartphones and data plans are complements.
• C) decrease, because smartphones and data plans are complements.
• D) increase, because smartphones and data plans are substitutes.

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Definitions:

Average Functioning Time

The mean time that a system or component operates properly without failure, typically measured over a specified period.

Independent Samples

Samples that are collected from distinct, non-overlapping populations such that the observations in one sample are not related or paired with observations in the other sample(s).

Population Distributions

The spread of characteristics or values within a whole population.

Average Ages

The mean value of the ages within a specific group or dataset, calculated by adding all the ages together and dividing by the total number of ages included.