Exhibit 6-6

question 34

Multiple Choice

Exhibit 6-6.Let the lifetime of a new Jet Ski be represented by a lognormal variable, where X is normally distributed.Let the mean of the lifetime of the Jet Ski be six years with a standard deviation of three years. Refer to Exhibit 6-6.What proportion of the Jet Skis will last nine or more years?

• A)0.1379
• B)0.1587
• C)0.8413
• D)0.8621

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Definitions:

Input

Information or signals entering a system or process for evaluation, storage, or further processing.

Stirrup

A small, U-shaped bone in the middle ear that plays a critical role in the process of hearing by transmitting sound vibrations to the inner ear.

Oval Window

is a membrane-covered opening at the base of the stapes bone in the middle ear that transfers sound vibrations from the middle ear to the cochlea of the inner ear.

Eardrum

A thin membrane that separates the outer ear from the middle ear and vibrates in response to sound waves.