A Commuter Travels Many Miles to Work Each Morning

question 60

Multiple Choice

A commuter travels many miles to work each morning.She has timed this trip 5 times during the last month.The time (in minutes) required to make this trip was 38, 33, 36, 47, and 41.What is the variance for these sample data?

• A)28.5
• B)11
• C)22.8
• D)5.34
• E)4.77

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Definitions:

Abbreviation

A shortened form of a word or phrase used to simplify writing and speaking.

Peripheral Nervous System

The portion of the nervous system that exists outside the brain and spinal cord, responsible for transmitting sensory information to the central nervous system and carrying motor commands to muscles and organs.

Pns

Abbreviation for Peripheral Nervous System, which includes nerves and ganglia outside of the brain and spinal cord.

Transient Ischemic Attack

Often called a mini-stroke, a transient episode of neurological dysfunction caused by the loss of blood flow to the brain, spinal cord, or retina, without acute infarction.