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Chapter 3: Q.13 (page 160)

Merlins breeding The percent of an animal species in the wild that survives to breed again is often lower following a successful breeding season. A study of merlins (small falcons) in northern Sweden observed the number of breeding pairs in an isolated area and the percent of males (banded for identification) that returned the next breeding season. Here are data for nine years:

Investigate the relationship between breeding pairs and percent return. Follow the four-step process.

Short Answer

Expert verified

Direction: Negative

Form: Curved

Strength: Moderate relationship.

Step by step solution

01

Given Information 

Data for nine years:

02

Explanation

The horizontal axis represents breeding pairs, while the vertical axis represents percent return.

03

Explanation

Direction: The direction is negative, Because the scatterplot slopes downhill.

Form: The form is curved, Because the scatterplot has curvature.

Strength: Moderate, since the points are not too far apart but not too close together.

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