How Is the Length of a Star's Lifetime Related to the Mass

question 246

Multiple Choice

How is the length of a star's lifetime related to the mass of the star?

• A) Lower-mass stars run through their lives faster and have shorter lifetimes.
• B) The lifetimes of stars are too long to measure, so it is not known how (or if) their lifetimes depend on mass.
• C) A star's lifetime does not depend on its mass.
• D) Higher-mass stars run through their lives faster and have shorter lifetimes.

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Definitions:

Dependent Means

Refers to averages that are related or influence each other, typically within paired or matched samples in statistical analyses.

Sample Size

The number of observations or replicates included in a statistical sample.

Dependent Means

Relates to statistical tests used to compare the means of related groups.

Sample

A selected portion of a population used in statistical analysis, chosen to represent the whole population in studies or experiments.