A New Extended-Life Light Bulb Has an Average Service Life

question 20

Multiple Choice

A new extended-life light bulb has an average service life of 750 hours, with a standard deviation of
50 hours. The shape of this distribution is unknown. From a sample of 100 light bulbs, about what
Percent of the bulbs will last more than 700 hours?

• A) 100%
• B) 34.13%
• C) 84.13%
• D) 50%

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Definitions:

Chauvinism

An exaggerated or aggressive patriotism or blind enthusiasm for military glory; alternatively, it can refer to biased devotion to any cause, group, or gender.

Cardinal Trait

A personality trait that is so pervasive and dominant in a person's life that it influences nearly every aspect of their behavior.

Repetitive Physical Actions

Behaviors or activities that involve the continuous repetition of the same motion or set of motions, often associated with skill learning or stress reduction.

Perseverative Functional Autonomy

The level of functional autonomy that relates to low-level and routine behaviors.