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Unformatted text preview: tion of the Portage County Animal
Protective League called “Tattle Tails”. They make the following statement and then
have a chart of data that supports it. “It doesn’t take long for two cats to turn into 80
million. If two cats and their surviving oﬀspring reproduced for ten years, you’d end up
with 80,399,780 cats.” We assume N (0) = 2.
Cats N (x) 1 2 3 4 5 6 7 8 9 10 12 66 382 2201 12680 73041 420715 2423316 13968290 80399780 Use Quadratic Regression to ﬁnd a parabola which models this data and comment on its
goodness of ﬁt. (Spoiler Alert: Does anyone know what type of function we need here?) 2.5 Regression 177 (b) This next data set comes from the U.S. Naval Observatory. That site has loads of
awesome stuﬀ on it, but for this exercise I used the sunrise/sunset times in Fairbanks,
Alaska for 2009 to give you a chart of the number of hours of daylight they get on the
21st of each month. We’ll let x = 1 represent January 21, 2009, x = 2 represent February
21, 2009, and so on.
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