Find the Sum or Difference $$( r - 15 ) ^ { 2 }$$

question 17

Multiple Choice

Find the sum or difference.
- $$( r - 15 ) ^ { 2 }$$

• A) \(225 r ^ { 2 } - 30 r + 225\)
• B) \(r ^ { 2 } + 225\)
• C) \(r ^ { 2 } - 30 r + 225\)
• D) \(r + 225\)

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Definitions:

Hypothesis Testing

A statistical approach that utilizes data from a sample to test a theory regarding a population's parameter.

Normally Distributed Population

A population in which the data follows a normal distribution, having a bell-shaped frequency distribution curve.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values.

T Critical Value

The value from the t-distribution that is associated with a specified level of significance for a two-tailed test.