A Return Series Has an Arithmetic Mean of 12

question 7

Multiple Choice

A return series has an arithmetic mean of 12.8% and standard deviation of 7.8%. Assuming the returns are normally distributed what is the range of returns that an investor would expect to receive 95% of the time?

• A)12.8% to 20.6%
• B)-10.6% to 36.2%
• C)-2.8% to 28.4%
• D)-12.8% to 20.6%
• E)10.6% to 36.2%

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Definitions:

Endolymph

A fluid within the inner ear's membranous labyrinth, crucial for transmitting sound and balance signals to the brain.

Temporal Bone

A bone situated at the sides and base of the skull, contributing to the skull structure and housing the organs of hearing and balance.

Organ of Hearing

The ear, which is responsible for detecting sound waves and converting them into electrical signals that can be interpreted by the brain as sound.

Organ of Corti

A structure located on the basilar membrane inside the cochlea of the inner ear, containing hair cells that convert sound vibrations into neural signals.