An Extremely Large Collection of Stars Bound Together by Gravitational

question 67

Multiple Choice

An extremely large collection of stars bound together by gravitational attraction and occupying a huge volume of space is called a _______________.

• A) planetary nebula
• B) solar system
• C) universe
• D) galaxy

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Definitions:

Confidence Interval Estimate

A range of values, derived from sample data, that is likely to contain the value of an unknown population parameter, with a specified level of confidence.

Population Variance

The average of the squared differences from the Mean, representing the variance of an entire population.

Chi-Square Value

A statistic that measures the discrepancy between observed and expected frequencies in categorical data, used in hypothesis testing.

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter with a specified level of confidence.