If the Surface of a Star Cools, the Number of H

question 78

Multiple Choice

If the surface of a star cools, the number of H ^- ions ________ and the atmosphere becomes more ________.

• A) decreases; opaque
• B) decreases; transparent
• C) increases; transparent
• D) increases; opaque
• E) stays the same; transparent

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Definitions:

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis, and it depends on the chosen significance level.

Independent Variables

Variables in a statistical model that are manipulated or changed to observe their effect on dependent variables.

Coefficient of Determination

A measure used in statistical modeling that indicates how well data points fit a line or curve. It is represented as a value between 0 and 1.

Dependent Variable

A variable in statistical modeling whose value is influenced by other variables.