In a Simple Linear Regression Analysis (Where Y Is a Dependent

question 125

Multiple Choice

In a simple linear regression analysis (where y is a dependent and x an independent variable) , if the y-intercept is positive, then

• A) there is a positive correlation between x and y.
• B) if x is increased, y must also increase.
• C) if y is increased, x must also increase.
• D) the estimated regression line intercepts the positive y-axis.

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Definitions:

Gravel

A loose aggregation of rock fragments, pebbles, and small stones, often used in construction and as a surface material for roads and driveways.

Uranium

A dense, metallic element used as fuel in nuclear reactors and as a component in nuclear weapons, known for its radioactive properties.

Regression

A process in statistics that determines the relationship between variables, or in geology, the retreat of the sea from the land.

Unit 1

Often a reference to the primary or initial segment in a series within educational materials or scientific classifications, indicating foundational knowledge or elements.