Complete the following.
(a)Conjecture whether the correlation coefficient r for the data will be positive, negative, or zero.
(b)Use a calculator to find the equation of the least-squares regression line and the value of r.
(c)Use the regression line to predict y when x = 2.4.
x | - 4 | - 3 | -1 | 3 | 5 |
37.2 | 33.7 | 27.5 | 16.4 | 9.8 |
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