How Long Does It Take for a 1-Solar-Mass Star to Pass

question 53

Multiple Choice

How long does it take for a 1-solar-mass star to pass through the pre-main-sequence phase?

• A) 10 million years
• B) 10,000 years
• C) 10 billion years
• D) 100,000 years

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Definitions:

Cluster Sample

A sampling method where the population is divided into clusters, and a random sample of these clusters is chosen for analysis.

Rows

In the context of data, rows represent individual records or observations in a database or table.

Average Age

The mean age of a group of individuals, calculated by adding their ages together and dividing by the total number of individuals.

Voluntary Response Sampling

A sampling method in which participants self-select to be part of a survey or study, often leading to biased results due to non-random participation.