Star a Has an Apparent Magnitude of 3, and Star

question 29

Multiple Choice

Star A has an apparent magnitude of 3, and Star B has an apparent magnitude of 5. Which star is brighter in our sky?

• A) Star A
• B) Star B
• C) There is not enough information to answer the question.
• D) The two stars have the same brightness in our sky, but Star A is closer to us than Star B.

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Definitions:

Partial-regression Coefficient

A measure indicating the change in the dependent variable for a one-unit change in an independent variable while holding other variables constant.

Multiple Determination

A statistical measure that indicates how well data fit a statistical model – often denoted as R-squared in the context of multiple regression analysis.

Multiple Correlation

A measure that represents the strength and direction of a linear relationship between one dependent variable and two or more independent variables.

Multiple-regression Equation

A mathematical method used to depict how a dependent variable is related to two or more independent variables by applying a linear formula to the data collected.