A Hotel Stocks White, Cream and Blue Pillowcases

question 1

Multiple Choice

A hotel stocks white, cream and blue pillowcases. Currently they have 400 white, 120 cream and 80 blue pillowcases. What is the probability of picking a blue pillowcase at random (3 decimal places) ?

• A) 0.133
• B) 0.150
• C) 0.185
• D) 0.222

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Definitions:

Tire Pressure Monitoring Systems (TPMSs)

Electronic systems designed to monitor the air pressure inside the pneumatic tires on various types of vehicles, alerting the driver when tire pressure is low.

Built-in Levels

Features integrated into tools or devices that allow for the measurement of alignment or balance, typically through the use of a liquid-filled vial with an air bubble.

Oil Pressure Sending Unit

A sensor that measures the oil pressure in an engine, sending the data to a gauge or warning light on the dashboard.

Ground Circuit

An electrical circuit that provides a path for current to return to the earth, used for safety and to prevent undesired current paths.