In Trend Projection, a Negative Regression Slope Is Mathematically Impossible

question 43

True/False

In trend projection, a negative regression slope is mathematically impossible.

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Definitions:

Class Rank

A measure of how a student's performance compares to others in their group or grade level, often expressed as a percentile or as a rank.

Ordinal Random Variable

A random variable that has outcomes which can be ordered or ranked but does not necessarily have a quantitative value.

Nominal Random Variable

A variable that represents data which can be classified into distinct categories with no logical order.

Nominal Data

Data classified into categories that cannot be ordered or ranked; purely qualitative.