Which One of These Is NOT a Recent Astronomical Discovery

question 308

Multiple Choice

Which one of these is NOT a recent astronomical discovery?

• A) the discovery of life on other planets
• B) the discovery of planets around other stars
• C) sending a spacecraft through Saturn's rings
• D) landing a spacecraft on an asteroid

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Definitions:

Population

The entire group of individuals or instances about whom the research may provide conclusions.

Group

A collection of individuals assembled for the purpose of conducting a study or observed in research, characterized by shared traits or conditions.

Null Hypothesis

A default hypothesis that there is no effect or no difference, and any observed difference is due to sampling or experimental error.

Sample Statistic

A numerical measure computed from a sample of data, used to estimate population parameters.