Stars That Lie in Different Places on the Main Sequence

question 27

Multiple Choice

Stars that lie in different places on the main sequence of the H-R diagram differ from each other mainly by having different:

• A) compositions
• B) internal structure
• C) masses
• D) radial velocities
• E) ways that they formed

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Definitions:

Regression Line

A line through a scatter plot of data points that best expresses the relationship between those points.

Textbooks

Books specifically designed to support instruction in a subject area, often used as a primary source of information in education.

Slope

The measure of the steepness and direction of a line, indicating the rate of change from one point to another.

Regression Line

A straight line that describes how a response variable y changes as an explanatory variable x changes, used in linear regression analysis.