The Table Below Gives Beverage Preferences for Random Samples of Teens

question 59

Multiple Choice

The table below gives beverage preferences for random samples of teens and adults. ​ We are asked to test for independence between age (i.e., adult and teen) and drink preferences.The expected number of adults who prefer coffee is

• A) 153.
• B) 255.
• C) 150.
• D) 200.

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Definitions:

Relays

Electrically operated switches that open or close circuits when activated, used in various applications to control high power or high voltage devices with low power signals.

Series Circuits

Electrical circuits in which components are arranged in a sequence such that the current flows through each component one after the other.

Voltage Drops

A reduction in voltage across a component or section of a circuit, indicating resistance or a loss of electrical power.

Resistance

A measure of the opposition to current flow in an electrical circuit, affecting how much current flows for a given voltage.