A Data Set Has a Mean of 60 and a Standard

question 51

Multiple Choice

A data set has a mean of 60 and a standard deviation of 5. Which of the following might possibly be true?

• A)More than 90% of the data values are between 45 and 75.
• B)No less than 30% of the data values are less than 50 or greater than 70.
• C)No more than 50% of the data values are between 50 and 70.
• D)At least 15% of the data values are less than 45 or greater than 75.

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Definitions:

Information Processing

A psychological model that describes how humans perceive, analyze, manipulate, and store information, akin to the functions of a computer.

Attention

Information processing involving the ability to strategically choose among and sort out different stimuli in the environment.

Selective Encoding

The process of focusing attention on relevant information while ignoring irrelevant information during problem solving and decision making.

Ambient Storage

A method of storage that does not require any artificial temperature control, relying instead on the ambient conditions of the surroundings.