Two Main-Sequence Stars Have the Same Temperature

question 84

Multiple Choice

Two main-sequence stars have the same temperature. If star A is four times brighter than star B, then:

• A) star B is two times farther away than star A
• B) star B is four times farther away than star A
• C) star B is eight times farther away than star A
• D) star B and star A lie at the same distance from us
• E) it is impossible to determine their relative distances from the information given

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Definitions:

Standard Deviation

A quantitative assessment that determines the range of difference or dispersion in a collection of data.

Mean

It is the central value of a discrete set of numbers, specifically, the sum of the values divided by the number of values.

Sample Data

A subset of data collected from a larger population, used for analysis and inference.

Frequency Distribution

A mathematical representation showing the number of occurrences of each unique value in a dataset.