Calculations Suggest That the Number of Free-Floating Planets in the Milky

question 4

Multiple Choice

Calculations suggest that the number of free-floating planets in the Milky Way Galaxy is:

• A) only a relative few since they must occur very rarely.
• B) a few thousand at most.
• C) around a billion.
• D) more numerous than the stars.

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Definitions:

Tukey's Multiple Comparison

A statistical test used to find the differences between means in a set of data, controlling the error rate when making several comparisons.

Studentized Range Statistic

A measure used in statistics to identify outliers in a data set, calculated by dividing the range by an estimate of the standard deviation.

Critical Value

A critical value is a point on the distribution curve that separates the area where the null hypothesis is accepted from the area where it is rejected in hypothesis testing.

Sample Sizes

Measurements or quantities of observations used in a statistical sample, representing a portion of the population under study.