The Acceleration (Or Deceleration) of the Expansion of the Universe

question 28

Multiple Choice

The acceleration (or deceleration) of the expansion of the universe is determined by

• A) the standard matter, baryons and leptons.
• B) the dark matter in the universe.
• C) the dark energy in the universe.
• D) all of the above.
• E) only (b) and (c) above.

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Definitions:

Standard Deviation

A statistic that quantifies the amount of variation or dispersion of a set of data values from the mean.

Freshman Class

The group of students collectively beginning their first year of higher education or high school.

Standard Error

A measure of the statistical accuracy of an estimate, commonly the standard deviation of the sampling distribution of a statistic.

Population Parameter

A value that accurately represents a particular characteristic of an entire population.