Use the Empirical Rule to Solve the Problem

question 134

Multiple Choice

Use the empirical rule to solve the problem.
-The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 210 hours and a standard deviation of 5 hours. What percentage of the bulbs have lifetimes that lie within 1 Standard deviation to either side of the mean?

• A)95.44%
• B)31.74%
• C)84.13%
• D)68.26%

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Definitions:

Marketing Chain

The series of processes and activities involved in moving a product from producer to consumer, including distribution and selling.

Vertical Merger

A merger between companies in the same industry but at different stages of the production process, such as a manufacturer merging with a supplier.

Horizontal Merger

A business consolidation that occurs between firms operating in the same industry.

Conglomerate Merger

A merger between companies operating in different industries, aimed at diversification or expansion of a corporate portfolio.