Often the percent of an animal species in the wild that survive to breed again is lower following a successful breeding season. This is part of nature‘s self- regulation, tending to keep population stable. A study of merlins (small falcons) in northern Sweden observed the number of breeding pairs in an isolated area and the percent of makes (banded for identification) who returned the next breeding season. Here are the data for nine year.
Breeding pairs
28 29 29 29 30 32 33 38 38
Percent Returns
82 83 70 61 69 58 43 50 47
1.Is there a clear explanatory variable and response variable in this setting? If so, tell which is which, If not, explain why not.
2. How would you describe the form of the relationship?
3.do you expect the correlation to be positive or negative? Near + or not? Explain.
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