Environmental Biologists Studying the Relationship Between the Number of Owls

question 32

Multiple Choice

Environmental biologists studying the relationship between the number of owls in a forested region and the number of field mice in the region believe that the deterministic component of the relationship is a straight line. A scatterplot shows that even though the general trend is linear, the points do not fall exactly on a straight line. Which of the following factors might account for the random component of this regression model?

• A)Variation in the size of the mice might cause variation in the amount of mice consumed by owls.
• B)Different size owls might affect the number of mice eaten.
• C)Variability might appear in the instrument used to count mice.
• D)All of these are possible factors that could account for the random component of the regression model.

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Definitions:

Interference

A condition where two parts intentionally have dimensions that prevent them from fitting together unless deformation occurs, ensuring a tight fit.

Mating Parts

Components designed to fit together in a specific manner to perform a function within an assembly.

Clearance Fit

A type of fit in engineering where there is a deliberate space between two mating parts, allowing freedom of movement.

Interference Fit

A type of fit where parts are designed such that their dimensions cause them to partially deform when assembled, ensuring a very tight fit.