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High mass stars are typically found on the of the main sequence.
Safe Harbor Provisions
Legal provisions that provide protection from liability under certain conditions, often seen in regulatory contexts.
Internal Validity
The extent to which a study can establish a causal relationship between variables, free of confounding factors.
External Validity
The extent to which the results of a study can be generalized to other situations and to other people.
Construct Validity
The extent to which a test measures what it claims to be measuring; it's about the accuracy of the operationalization of the variables.
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Q133: A star is 10 parsecs from Earth.
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