What Does the Equivalent of an H-R Diagram for Galaxies,plotting

question 40

Multiple Choice

What does the equivalent of an H-R diagram for galaxies,plotting luminosity versus color,show?

• A)galaxies fill the diagram showing that there is no correlation between luminosity and color
• B)two clumps,one blue with relatively low luminosity,one red with relatively high luminosity,and a valley in between with few galaxies
• C)a continuum from faint,blue galaxies to bright,red galaxies
• D)a continuum from faint,red galaxies to bright,blue galaxies
• E)a main sequence,just as for stars

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Definitions:

T Procedure

A statistical method used to test the mean of a population, especially useful when dealing with small sample sizes and unknown population standard deviations.

Outliers

Data points that significantly deviate from the other observations in a dataset, potentially indicating measurement error or an unusual event.

Statistical Procedure

A standard process or series of operations in statistics used for collecting, organizing, summarizing, and analyzing data to draw conclusions or make predictions.

Average Prices

The mean cost calculated by dividing the total sum of all prices by the number of prices in the dataset.