The following data come from an experiment performed by Francis Galton. The data relate the diameter of an offspring seed to that of its parent seed in the case of a self-fertilized seed.
Diameter of
parent seed
offspring seed
15
15.3
16
16.4
17
15.5
18
16.2
19
16.0
20
17.4
21
17.5
(a) Estimate the regression parameters.
(b) Does there appear to be a regression to the mean?
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