Find the Domain of the Expression $$\frac { y } { y ^ { 2 } - 25 }$$

question 150

Multiple Choice

Find the domain of the expression.
- $$\frac { y } { y ^ { 2 } - 25 }$$

• A) \(\{ y \mid y \neq 25\) and \(y \neq - 25 \}\)
• B) \(\{ y \mid y \neq 0 \}\)
• C) \(\{ y \mid y \neq 625\) and \(y \neq - 625 \}\)
• D) \(\{ y \mid y \neq 5\) and \(y \neq - 5 \}\)

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Definitions:

Correlation

A statistical measure that describes the extent to which two variables change together, but does not imply causation.

Correlational Study

A type of research design where a researcher examines the relationship between two or more variables without manipulating them, determining whether and how they are related.

Double-Blind Experiment

A study or experiment in which neither the participants nor the researchers know who is receiving a particular treatment, to prevent bias.

Representative Sample

A fraction of a population that reliably reflects the traits of the entire group.