Use the Empirical Rule to Describe Data That Are Bell $\$ 119$

question 44

Multiple Choice

Use the Empirical Rule to Describe Data That Are Bell Shaped
-Solar energy is considered by many to be the energy of the future. A recent survey was taken to compare the cost of solar energy to the cost of gas or electric energy. Results of the survey revealed that the distribution of the amount of the monthly utility bill of a 3 -bedroom house using gas or electric energy had a mean of $\$ 119$ and a standard deviation of $\$ 8$ . If the distribution can be considered bell shaped, what percentage of homes will have a monthly utility bill of more than $\$ 111$ ?

• A) approximately \(84 \%\)
• B) approximately \(95 \%\)
• C) approximately \(16 \%\)
• D) approximately \(32 \%\)

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Definitions:

Pure Competition

A market structure where many firms offer a homogenous product, and no single company can influence the market price or terms of sale.