What Type of Spectrum Do Most Stars Produce

question 79

Multiple Choice

What type of spectrum do most stars produce?

• A) an absorption spectrum on top of a blackbody spectrum
• B) an emission spectrum on top of a blackbody spectrum
• C) an absorption spectrum on top of an emission spectrum
• D) a pure emission spectrum
• E) a pure blackbody spectrum

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Definitions:

Expected Frequencies

The anticipated count of occurrences in each category of a statistical distribution under a null hypothesis.

Chi-square Statistic

A measure used in statistics to assess how expectations compare to actual observed data, especially in the context of categorical variables.

Expected Frequencies

The predicted counts in each category of a variable, calculated based on a hypothesis or model.

Cramer's V

A measure of association between two nominal variables, giving a value between 0 and 1 that indicates the strength of association.