The Figures Below Show the Spectrum of a Star, Along

question 81

Multiple Choice

The figures below show the spectrum of a star, along with five other spectra labeled A through E. Which one of the labeled spectra shows what the spectrum of that star would look like if it were viewed through a significant amount of interstellar dust?

• A) A
• B) B
• C) C
• D) D
• E) E

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Definitions:

Degrees Of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or in the calculation of a statistic, typically in the context of parameter estimation.

Chi-Square Distribution

A statistical distribution used to describe the distribution of a sum of the squares of independent random variables.

ANOVA

Analysis of Variance, a statistical method used to compare the means of three or more groups to see if at least one is statistically significantly different from the others.

Null Hypothesis

A statement or assumption that there is no significant difference or effect, serving as the default or starting assumption in statistical hypothesis testing.