State Whether the Function Is a Polynomial Function or Not $f ( x ) = \frac { 2 - x ^ { 4 } } { 9 }$

question 286

Multiple Choice

State whether the function is a polynomial function or not. If it is, give its degree. If it is not, tell why not.
- $f ( x ) = \frac { 2 - x ^ { 4 } } { 9 }$

• A) Yes; degree 1
• B) No; x is a negative term
• C) No; it is a ratio
• D) Yes; degree 4

---

Definitions:

Sample Variances

The measure of how spread out the numbers in a sample dataset are, calculated by averaging the squared differences from the sample mean.

Normal Population

A group or set of entities that exhibit data distribution in a bell-shaped curve, also known as the Gaussian distribution, where the mean, median, and mode are equal.

Degrees of Freedom

The number of independent values or quantities that can be assigned to a statistical distribution or in the calculation of a statistic.

Sample Sizes

The number of observations or data points that make up a sample, an essential aspect of experimental design affecting the accuracy of statistical estimates.