Bighorn sheep are beautiful wild animals found throughout the western United States. Let x be the age of a bighorn sheep (in years), and let y be the mortality rate (percent that die) for this age group. For example, x = 1, y = 14 means that 14% of the bighorn sheep between 1 and 2 years old died. A random sample of Arizona bighorn sheep gave the following information:
Σx = 15; Σy = 87.3; Σx2 =
55; Σy2 = 1,548.17; Σxy = 272.6
(c) Find the sample correlation coefficient r and the coefficient of determination r2. (Round your answers to three decimal places.)
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