If the Age Distribution of Customers at a Major Retail

question 6

Multiple Choice

If the age distribution of customers at a major retail chain is thought to be bell-shaped with a mean equal to 43 years and a standard deviation equal to 7 years, the percentage of customers between the ages of 29 and 57 years is:

• A) approximately 81.5.
• B) approximately 68.
• C) at least 75.
• D) approximately 95.

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Definitions:

Cerebral Hemisphere

One of the two halves of the brain (left or right) in vertebrates, responsible for controlling different functions and cognitive processes.

Stroke

A medical condition that occurs when the blood supply to part of the brain is interrupted or reduced, preventing brain tissue from receiving oxygen and nutrients, causing cells to die.

Picture Recognition

The cognitive ability to identify previously seen images or objects, often tested as a part of memory studies.

Speech Area

A region in the human brain involved in the planning, production, and understanding of speech, typically located in the left hemisphere.