Some Molecular Clouds Have So Much Internal Pressure That It

question 58

Essay

Some molecular clouds have so much internal pressure that it exceeds their self-gravity.What keeps them from expanding and dissipating?

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Definitions:

Sample Proportion

The ratio of members in a sample meeting a certain criterion to the total number of members in the sample, serving as an estimate of the population proportion.

Normal Distribution

A bell-shaped probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Sample Size

Sample size refers to the number of observations or data points collected in a study.

Sampling Distribution

The arrangement of probabilities for a specified statistic, coming from a randomly chosen sample.