The Probability That a House in an Urban Area Will

question 69

Multiple Choice

The probability that a house in an urban area will develop a leak is 5%. If 20 houses are randomly selected,what is the mean of the number of houses that developed leaks?

• A) 1
• B) 2
• C) 0.5
• D) 1.5

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Definitions:

Total Impedance

The collective resistance to current flow in an AC circuit, including the effects of both resistance and reactance.

Applied Voltage

The amount of voltage connected to a circuit or device.

Total Current

The sum of all currents flowing through all branches of a circuit.

Power Factor

The ratio of real power flowing to the load to the apparent power in the circuit, indicating the efficiency of power usage.