Find the Standard Deviation of the Data Summarized in the Given

question 56

Multiple Choice

Find the standard deviation of the data summarized in the given frequency distribution.
-A test score of 54.0 on a test having a mean of 73 and a standard deviation of 10.

• A)-1.9; not unusual
• B)-19; unusual
• C)-1.9; unusual
• D)1.9; not unusual

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Definitions:

Skeletal System

The framework of bones and cartilages that supports the body, protects internal organs, and facilitates movement.

Photoreceptors

Specialized cells found in the retina of the eye that convert light into electrical signals, facilitating vision.

Retina

A layer at the back of the eyeball containing cells that are sensitive to light and that trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.

Optic Nerve

The nerve that transmits visual information from the retina to the brain.