A Population Has a Standard Deviation of 16

question 80

Multiple Choice

A population has a standard deviation of 16. If a sample of size 64 is selected from this population, what is the probability that the sample mean will be within ±2 of the population mean?

• A) 0.6826
• B) 0.3413
• C) -0.6826
• D) Since the mean is not given, there is no answer to this question.

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Definitions:

Simplify

The process of altering an expression or equation to make it easier to understand or solve, usually by combining like terms or removing parentheses.

Average Cost

The total cost divided by the number of goods produced, calculating the cost per unit of goods.

Domain

In mathematics, specifically in the context of functions, the domain is the set of all possible input values (or arguments) for which the function is defined.

Manufacturer

A person or company that makes goods for sale in large quantities.