In the Quadratic Regression Model Y = ?₀+ ?₁x

question 13

Short Answer

In the quadratic regression model y = ?₀+ ?₁x + ?₂x²+ ?,if the term ?₂is greater than zero,then the parabola opens __________.

---

Definitions:

Stratified Epithelium

A type of epithelial tissue composed of multiple layers of cells, serving as a protective barrier in areas of the body subject to abrasion and friction.

Mesothelium

A simple squamous epithelium that lines the major cavities of the body and covers the surface of internal organs.

Visceral

Relating to the internal organs of the body, especially those within the chest or abdomen.

Parietal

Relating to the walls of a cavity or part, often used in reference to a region of the brain or bones of the skull.