What Do We Mean When We Say That the Universe

question 118

Multiple Choice

What do we mean when we say that the universe is expanding?

• A)Within galaxies, average distances between star systems are increasing with time.
• B)Everything in the universe is gradually growing in size.
• C)The statement is not meant to be literal; rather, it means that our knowledge of the universe is growing.
• D)Average distances between galaxies are increasing with time.

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Definitions:

Population Standard Deviation

A measure of the dispersion or variability within a population data set, quantifying how much individuals within this population differ from the population mean.

Home Prices

The amount of money required to purchase residential properties, which can vary widely based on location, size, condition, and market trends.

Subdivisions

Sections or segments into which a larger area, population, or structure is divided, often used in urban planning, demographic studies, and experimental designs.

Null Hypothesis

The hypothesis that assumes no significant difference or effect in the context of a statistical test, subject to verification against an alternative hypothesis.