The Distribution of the Annual Incomes of a Group of Middle

question 111

Multiple Choice

The distribution of the annual incomes of a group of middle management employees approximated a normal distribution with a mean of $37,200 and a standard deviation of $800. About 68 percent of the incomes lie between what two incomes?

• A) $30,000 and $40,000
• B) $36,400 and $38,000
• C) $34,800 and $39,600
• D) $35,600 and $38,800

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Definitions:

Alveoli

Tiny air sacs within the lungs where gas exchange between the air and blood occurs, essential for breathing and oxygenation of blood.

Tissue Cells

Cells that are organized together to perform a specific function, making up the tissue of organisms.

Expired Air

The air that is exhaled out of the lungs, typically containing lower oxygen and higher carbon dioxide levels than inhaled air.

Inspired Air

Air that is inhaled into the lungs, containing oxygen which is essential for the respiratory process in living organisms.