The Orbits of Comets Are

question 84

Multiple Choice

The orbits of comets are

• A) primarily in the plane of the ecliptic and can extend far out beyond the orbit of Pluto.
• B) randomly oriented in the solar system and confined to distances closer to the Sun than approximately the orbit of Pluto.
• C) primarily in the plane of the ecliptic and confined to distances closer to the Sun than approximately the orbit of Pluto.
• D) randomly oriented in the solar system and can extend far beyond the orbit of Pluto.

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Definitions:

Two-Sample Procedure

A statistical method used to compare two independent samples to test a hypothesis about the difference between population parameters.

Common Variance

The shared variance between variables in a statistical model, often referring to the portion of variability that is accounted for by a common factor.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution, typically in the context of parameters estimated from sample data.

Pooled-Variance T Test

A statistical test that compares the means of two independent samples while assuming that they have the same variance.