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 | −1 | 0 | 1 | 2 | 3 |
y | − 5.7 | − 2.6 | 1.1 | 3.9 | 7.3 |
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