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: x 1 2 3 4 5 y 12.2 17.5 14.4 19.6 20.0 (c) Find the sample correlation coefficient r and the coefficient of determination r2. (Round your answers to three decimal places.) r = ? r2 = ? What percentage of variation in y is explained by the least-squares model? __________ %(Round your answer to one decimal place.)
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:
| x | 1 | 2 | 3 | 4 | 5 |
| y | 12.2 | 17.5 | 14.4 | 19.6 | 20.0 |
(c) Find the sample
| r = | ? |
| r2 = | ? |
What percentage of variation in y is explained by the least-squares model? __________ %(Round your answer to one decimal place.)
incorrect answers: I submitted this question and was told this is the answer but it is NOT CORRECT. please help !!
r=0.800
r2= 0.640
64%
( above answers are incorrect)
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