All of the Terms in the Drake Equation Are Estimates

question 8

Multiple Choice

All of the terms in the Drake equation are estimates. In the next decade, which of these estimates is likely to improve the most because of better observational data?

• A) number of stars in the Milky Way
• B) fraction of stars with planets
• C) fraction of planets where life evolves to intelligence
• D) number of planets per star in the habitable zone

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Definitions:

Differences

Variations or distinct disparities between two or more entities, values, or conditions.

Null Hypothesis

A statistical assumption positing that there is no meaningful difference or association between specified attributes or variables.

One-way ANOVA

A statistical test that compares the means of three or more independent groups using variance analysis to determine if at least one group mean is significantly different from the others.

Freshman

Typically refers to a student in their first year of study in high school or college.