If a Data Set Is Normally Distributed, What Is the Proportion

question 152

Multiple Choice

If a data set is normally distributed, what is the proportion of measurements you would expect to fall within $\mu \pm \sigma$ ?

• A) 100%
• B) 50%
• C) 68%
• D) 95%

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Definitions:

Difference Threshold

The smallest difference in stimulus intensity required to detect a difference between two stimuli, also known as the just noticeable difference (JND).

Cornea

The tough, transparent, protective layer that covers the front of the eye and bends light rays inward through the pupil.

Eye

An organ of vision that detects light and converts it into electro-chemical impulses in neurons.

Transparent

Allowing light to pass through so that objects behind can be distinctly seen; in an informational context, clear and easy to understand or recognize.