The Mean Life of a Particular Brand of Light Bulb

question 61

Multiple Choice

The mean life of a particular brand of light bulb is 1000 hours and the standard deviation is 50 hours.We can conclude that at least 75% of this brand of bulbs will last between ___.

• A)900 and 1100 hours
• B)950 and 1050 hours
• C)850 and 1150 hours
• D)800 and 1200 hours
• E)1050 and 1250 hours

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Definitions:

Global Market

An interconnected marketplace without geographical limits where goods, services, and capital move freely.

Multinational

A corporation that operates in multiple countries, managing production or delivering services in more than one country.

World Economic Forum

An international organization that brings together political, business, and other leaders to shape global, regional, and industry agendas.

Davos Man

A term referring to the global elite of wealthy and powerful individuals who are believed to attend the World Economic Forum in Davos, Switzerland, impacting global policies.