The Sketch Above Shows Groups of Stars on the H-

question 25

Multiple Choice

The sketch above shows groups of stars on the H- R diagram, labeled (a) through (e) ; note that (a) represents the entire main sequence while (c) and (d) represent only small parts of the main sequence. Which group represents stars that are cool and dim?

• A)a
• B)b
• C)c
• D)d
• E)e

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Definitions:

Assume

To accept something to be true without question or proof.

Research Hypothesis

A specific, testable prediction about the relationship between two or more variables that a researcher aims to investigate.

Purpose

The reason for which something is done or created or for which something exists.

Sampling Error

The difference between a sample statistic used to estimate a population parameter and the actual but unknown value of the parameter.