What Percent of the Observations from a Normal Distribution Lie

question 32

Multiple Choice

What percent of the observations from a Normal distribution lie between a standard score of -1 and a standard score of 2? (Hint: sketch a Normal curve.)

• A) 16%
• B) 47.5%
• C) 50%
• D) 61%
• E) 81.5%

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Definitions:

Genetic Markers

Specific sequences in the DNA that can be used to identify individuals, populations or species, often used in studies of genetic disorders, population genetics and forensic science.

Predisposition

A natural inclination or tendency to behave in a specific way before being exposed to external factors.

Interact

To communicate or act together in a way that affects or influences each other, often used in reference to individuals or systems.

Robert Louis Stevenson

A Scottish novelist, poet, and travel writer, famous for works like Treasure Island and Strange Case of Dr Jekyll and Mr Hyde.