find the
regression line, the correlation coefficient of the following data sets, and interpolate or extrapolate the
requested data. (Round all numbers to the nearest hundredth, when necessary.)
Data Set: {(0,7), (1, 5), (1.5, 3), (2, 5), (2.3, 3.2), (3, 2), (3.5,4)}
1. The regression line is: y = 6.09
1.01
2. Based on the regression line, we would expect the value of response variable to be 6.09
when the explanatory variable is 0.
3. For each increase of 1 in of the explanatory variable, we can expect a(n) decrease of
1.01
4. If a 2.5, the ลท:
=
in the response variable. (NOTE: This is the slope.)
x.This is an example of interpolation +
5. The correlation coefficient is 7=
-0.73
