In Your Backyard You Overturn a Large Rock

question 15

Multiple Choice

In your backyard you overturn a large rock. In the damp soil underneath the rock, you see various insects scurrying for cover: two black beetles, five black ants, two brown beetles, and three pillbugs. In this community of organisms, relative abundance favors

• A) pillbugs.
• B) ants.
• C) beetles.
• D) pillbugs and beetles equally.

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Definitions:

Contingency Table

A contingency table is a type of table in a matrix format that displays the frequency distribution of the variables. It helps in analyzing the relationship between two or more categorical variables.

MINITAB Output

The results or data analysis produced by MINITAB, a statistical software package.

Brand of Oil

A classification or type of oil distinguished by its producer, properties, and potential applications, often used in cooking, machinery, or as a raw material.

Chi-Square Test

A statistical method employed to ascertain whether there's a meaningful discrepancy between the frequencies that are observed and those anticipated across one or more categories.