Why Would a Correlation of -

question 23

Essay

Why would a correlation of -.5 be just as useful as a correlation of .5?

---

Definitions:

Quadratic Form

An expression in which the highest power of variables is squared, typically written in the form ax^2 + bx + c.

Square Root Property

A principle stating that for any positive number x, there exists a positive and negative value whose square equals x.

Square Root Property

Refers to a principle used to solve quadratic equations, stating that if \( x^2 = a \), then \( x \) is equal to both the positive and negative square root of \( a \).

Complex Solutions

Solutions to equations that include imaginary numbers, typically used when solving polynomial equations that do not have real-number solutions.