The Moon Orbits the Earth the Earth Orbits the Sun

question 18

Multiple Choice

The Moon orbits the Earth the Earth orbits the Sun. If the Earth-moon system is ˜1 AU from the Sun and takes ˜1 Earth year to orbit, what is the combined mass of the triple system Express your answer in solar mass units.

• A)1
• B)1.1
• C)1.2
• D)1.3

---

Definitions:

Chi-Squared Distribution

A statistical distribution employed in hypothesis testing that is known for its utility in evaluating the goodness-of-fit between observed and expected data.

Sample Sizes

Refers to the number of observations or elements chosen from a population to form a sample for a statistical study.

Kruskal-Wallis Test

A non-parametric test used to determine if there are statistically significant differences between two or more groups of an independent variable on a continuous or ordinal dependent variable.

Kruskal-Wallis Test

An approach that is not based on parameter-specific criteria to determine if samples are from the same distribution.