The Number of Electrical Outages in a City Varies from Day

question 14

Multiple Choice

The number of electrical outages in a city varies from day to day. Assume that the number of electrical outages (x) in the city has the following probability distribution. $$\begin{array} { c c } x & f ( x ) \\\hline 0 & 0.80 \\1 & 0.15 \\2 & 0.04 \\3 & 0.01\end{array}$$ The mean and the standard deviation for the number of electrical outages (respectively) are _____.

• A) 2.6 and 5.77
• B) 0.26 and .577
• C) 3 and .01
• D) 0 and .8

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Definitions:

Straight-Line

A method of calculating depreciation of an asset where the asset's cost is evenly spread over its useful life.

Depreciation

The systematic allocation of the cost of a tangible asset over its useful life, reflecting the decrease in value over time.

Securities and Exchange Act

A U.S. law enacted in 1934 to regulate the securities industry and mandate disclosure of important financial information for publicly traded companies.

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